organism/elements/neuron/appunti/2026-06-29-tripartite-synapse_v17.md

# Tripartite Synapse — Pseudocode v17

> Companion: `tripartite_synapse_v17_biology.md` · principle: `logic_principles_v3`.
> Changes from v16 — NIGHT is no longer an external driver; it is an EMERGENT, per-component
> state driven by a fatigue→sleep-pressure loop. Actors at every scale are written as peers.
>  (1) EIGHT actors in one uniform template:
>      LOCAL components — SOMA · PRE · POST · DEND · AXON · ASTROSYNAPSE (behave by DAY)
>      CELL actors      — NEURON (over soma/pre/post/dend/axon) · ASTROCYTE (over astrosynapses)
>      SYSTEM actor     — HYPOTHALAMUS (integrates fatigue, emits sleep-pressure)
>  (2) DAY/NIGHT are PER-COMPONENT emergent states, not a global clock: a component is in NIGHT
>      when its OWN activity is low AND sleep-pressure is high; back to DAY when pressure falls.
>      (transition rule stated once in Conventions). The HYPOTHALAMUS alone is CONTINUOUS.
>  (3) the external NIGHT driver is REMOVED. Restructuring is gated by local low-activity
>      (behavior and restructuring are mutually exclusive at the substrate).
>  (4) higher actors INTEGRATE constituents' emitted activity by their day and BROADCAST
>      permission / renormalization / reallocation by their night — they never reach in;
>      each component restructures ITSELF in response to arrived signals (locality holds).
>  (5) governing rule: NO actor authorizes its own restructuring — each is PUT IN THE POSITION
>      to restructure by the actor above it (which holds an aggregate it cannot see and opens a
>      quiet window it cannot open). The system acts locally and consolidates hierarchically.
> Carried: cyclic/phased NIGHT, occupancy reset, tag-as-fuel, transit, two-resource metabolism.

---

## Functional groups (seven-group grammar)

```
RECEIVE   take in resources + signals that arrived from outside     (boundary: in)
TRACE     maintain the trace hierarchy — deposit fast trace; accumulate
          possible_tag + endurance_need; stabilize tag on coincidence
ADJUST    compute local operating parameters from structure + traces + modulators
BEHAVE    the component's defining action, within both ceilings
EMIT      send out — signals (messages) + resources (shipments)      (boundary: out)
RECOVER   refill own private pools consumed by behaving
DECAY     let traces recede, closing their windows
```

EVALUATE merged into TRACE: judging a behavior is always maintaining a trace, whether or not
a trace is written. BEHAVE and EMIT stay separate — EMIT is the output half of the locality
interface (RECEIVE/EMIT are the only boundary crossings). TRACE spans all timescales: the
soma's inactivation, adaptation, and nuclear-Ca deposits are all TRACE. Order within a context
follows data dependencies; TRACE reads/writes whatever trace state is current.

EVERY FLOW HAS A TIMESCALE. Decay relaxes toward 0 over τ; creation/arrival relaxes toward a
target over τ — the same first-order operator. Within-step writes are the special case τ ≪ Δt.
Rate-limited inflows (fill/refill/flux·Δt) carry their τ implicitly; shipment carries an
explicit transit delay (see `transit`).

THE GROUPS MOVE BETWEEN TIERS (the ladder; see logic_principles "The Timescale Ladder").
Four tiers: FAST (ms–s) · MEDIUM (s–min) · SLOW (hr) · PERSISTENT (NIGHT-written). The groups
move evidence UP the ladder and read capacity DOWN it:

```
  ADJUST    reads PERSISTENT ceiling + FAST trace  → sets this step's operating point (down)
  BEHAVE    acts at FAST, bounded by the PERSISTENT ceiling                          (down)
  TRACE     deposits FAST, accumulates FAST→MEDIUM evidence, stabilizes MEDIUM→SLOW tag (up)
  RECOVER   refills toward the PERSISTENT ceiling                                     (down)
  DECAY     relaxes FAST · MEDIUM · SLOW (PERSISTENT never decays in DAY)
  NIGHT     commits SLOW tag + MEDIUM endurance_need → PERSISTENT ceilings            (up)
```

Capacity flows downward (slow sets the ceiling for fast); evidence flows upward (fast
accumulates toward slow). Each component's DECAY group below is banded by tier to show this.

NIGHT IS THE SAME GRAMMAR, ITERATED, WITH THE FLOW REVERSED. NIGHT is not a separate section —
each component carries a `NIGHT |` block, and a driver loops all blocks for cycle = 1,2,3…
until the night ends. DAY runs bottom-up (consumers act first, evidence ascends leaves→roots);
NIGHT runs top-down (producers act first, capacity descends roots→leaves). Per cycle, each
component:

```
  RECEIVE   take in the material + energy batch that arrived from my producer this cycle
  TRACE     read my own tag / endurance_need (the standing demand)
  ADJUST    size this cycle's commit from material + energy actually on hand
  BEHAVE    commit a BATCH: structure += Δ (from tag) ; budget_ceiling += Δ' (from need)
            spend material + energy ; SPEND the tag/need by the committed amount (tag-as-fuel)
  EMIT      ship a batch of material + energy one hop down to my consumers (demand-weighted)
  RECOVER   reclaim material from any ceiling that decayed this cycle (energy is NOT recovered)
  DECAY     unmaintained ceilings drift down a little; tags decay a little
```

Roots (SOMA, ASTRO cell body) PRODUCE the batch each cycle (RECEIVE = production, capped by
glucose / CREB). The night ends when DEMAND is exhausted (no tag stands above tag_expiry,
system-wide) OR SUPPLY is spent (the night's energy throughput is used up) — whichever first.
Unspent tags are NOT cleared; they carry to the next DAY and compete again next NIGHT. The
top-down order needs no schedule: iterating the local cycle delivers capacity to distal sites
over successive cycles, as transport physically does.

DAY AND NIGHT ARE PER-COMPONENT EMERGENT STATES, NOT A GLOBAL CLOCK. There is no global SCOPE
variable. Each component is in its own DAY or NIGHT, decided locally from its own activity and
the arrived sleep-pressure signal. The labels `DAY | …` and `NIGHT | …` below denote these
LOCAL states. One transition rule governs every component (stated once here, not repeated):

```
TRANSITION (evaluated per component, from local state + the arrived signal):
    enter NIGHT  when own_activity < rest_thr  AND  sleep_pressure > sleep_thr
    enter DAY    when sleep_pressure < wake_thr
  own_activity = the component's own running activity trace (it cannot restructure while busy:
                 behavior and restructuring compete for the same substrate — mutual exclusion).
  sleep_pressure = arrived signal broadcast by the HYPOTHALAMUS (see below).
```
Components therefore cross into NIGHT at different times — a wave, not a switch (local sleep).

THE FATIGUE LOOP REPLACES THE EXTERNAL DRIVER. The system has no scheduler. Activity generates
fatigue; the hypothalamus integrates fatigue and broadcasts sleep-pressure; high pressure (plus
a component's own quiet) opens the restructuring window; restructuring discharges fatigue;
discharge lowers pressure; components re-enter DAY. DAY and NIGHT are the two phases of one
homeostatic loop the system runs on itself.

```
  every component  →  emits fatigue (metabolic debt, unspent demand)  ↑
  HYPOTHALAMUS     →  integrates fatigue, emits sleep_pressure         ↓ (CONTINUOUS — never sleeps)
  every component  →  reads sleep_pressure + own activity → enters DAY or NIGHT locally
```

ACTORS ARE PEERS AT EVERY SCALE; EACH IS PUT IN POSITION BY THE ONE ABOVE. No actor authorizes
its own restructuring. Each holds an aggregate its constituents cannot see and opens a window
they cannot open, then BROADCASTS — it never reaches into a constituent's interior.

```
  HYPOTHALAMUS   integrates fatigue from all → broadcasts sleep_pressure   (system, CONTINUOUS)
       ↓ signal
  NEURON         integrates its components' activity/weight → broadcasts    (cell actor)
  ASTROCYTE      rest-permission + renormalization / reallocation           (cell actor)
       ↓ signal   (NEURON over soma/pre/post/dend/axon ; ASTROCYTE over astrosynapses)
  COMPONENTS     soma · pre · post · dend · axon · astrosynapse — each restructures ITSELF
                 when its own DAY/NIGHT transition (above) grants the window
  [ ASSEMBLY / NETWORK ]  replay is INTERNALLY generated (spontaneous firing, below); the external
                          replay_reweight only BIASES which internal patterns are favored (cross-neuron
                          coordination), arriving like dopamine/glucose — it is not the replay itself
```

The two cell actors are structurally identical — same integrate-and-broadcast role, different
constituents and conserved quantity: NEURON conserves activity/weight, ASTROCYTE conserves
territory demand/load. Both have their own DAY (integrate, allocate in the gaps) and NIGHT
(broadcast the restructuring window). The HYPOTHALAMUS alone has no night: it runs CONTINUOUS,
always integrating fatigue and emitting sleep-pressure, spanning every other actor's day and
night — the clock that never sleeps.

NIGHT IS A SEQUENCE OF REPLAY CYCLES (dual of DAY). DAY loops action-steps until energy/material
is exhausted; NIGHT loops NON_REM_1 → REM → NON_REM_2 cycles until the tag is exhausted. It is the
SAME three-phase ring as DAY (PREPARATION · ACTION · EVALUATION) — only the subjects and the
assignment of which phase is ACTION vs EVALUATION rotate:
  NON_REM_1 = PREPARATION  import material/energy; PRIME the threshold/VGCC from the standing tag
  REM       = EVALUATION    release NT as a PROBE to MEASURE participation (fast_trace level);
                            NO dopamine — significance is settled; this reads circuit centrality only
  NON_REM_2 = ACTION        the structural change itself (the night's defining deed): general
                            homeostatic lowering, then increase where tag stands AND REM measured
                            high/medium participation, consuming the tag on the build
The SAME physical NT release is ACTION by DAY (transmit) and EVALUATION by NIGHT (probe to measure).
The structural change is only MARKED by day (the inert tag) and ENACTED by night. SOMA is the
ignition point: its REM firing propagates a replay_AP through the DAY PATHWAYS
(soma→axon→pre→glutamate→post→dend→soma), self-igniting the tagged pattern.

COHERENCE IS MECHANICAL, not a checked flag: a pattern re-evokes only where EVERY link in its
recurrent loop is primed (each component's own tag lowered its own threshold in NON_REM_1); one
un-primed link breaks the loop at the gap, so only patterns significant all the way around carry.
The assembly that replays is NOT an actor — it is the coincidence of many components' own lowered
thresholds propagating through recurrent coupling.

WHAT PERSISTS MUST HAVE EARNED PERSISTENCE. NON_REM_1 drives occupancy (VGCC_active, AMPA_surface,
possible_tag) toward baseline; NON_REM_2's homeostatic lowering trims all structure; only what is
rebuilt from a still-standing tag with confirmed participation carries forward. NIGHT ends when the
tag is exhausted (well-rested — every significant pattern replayed and its structure rebuilt) OR
energy is spent (overloaded — unspent tags carry to the next night).

---

## Conventions

```
SCOPE = {DAY, NIGHT}   CONTEXT = {AP, NOT_AP, NOT_SPIKE_TRAIN, bAP, NOT_bAP, CONTINUOUS}

THE RING (see logic_principles "The Three-Phase Ring"):  ACTION → EVALUATION → PREPARATION
  ACTION       lateral, punctate — the component's defining act; deposits the fast trace.
               ALWAYS LOCAL to the acting component (cannot be done on another's behalf).
  EVALUATION   local — read the fresh trace, climb the ladder toward the tag (the token for NIGHT).
  PREPARATION  vertical — settle pools/gates forward, read what descended, ready the next action.
  Phase edges are event/decay-timed, not clocked. EVALUATION and PREPARATION may be LOCAL or
  CONTEXTUAL (supplied by a neighbor/higher component); ACTION is always local. A near-pure-action
  component (e.g. a channel) is written ACTION-only, its eval/prep noted as contextual.

CONTEXT LICENSES PHASE (context = the imposed condition; phase = the work it permits).
  The context is what other components impose (a spike delivered or not, a train present or not);
  the phase annotation says which ring-work runs. Contexts can NEST, and nested contexts run
  ON TOP of their parent — a behavior is written in exactly ONE context, so nothing double-runs:
    AP               spike this step            → ACTION
    NOT_AP           no spike this step         → FAST eval + FAST prep   (in-train gaps AND quiet)
    NOT_SPIKE_TRAIN  no spike AND no train  ⊂ NOT_AP  → adds SLOW eval + SLOW prep (runs on top of NOT_AP)
  A process runs in the SHORTEST quiet its timescale fits: fast-trace decay and partial pool refill
  in NOT_AP (they ride the train and set short-term depression); tag formation, full refill, and
  occupancy read-out in NOT_SPIKE_TRAIN. (Components without trains use only their ACTION / quiet
  contexts, e.g. bAP / NOT_bAP, or continuous graded activity.)

VARIABLE TIERS (timescale = meaning; see logic_principles "The Timescale Ladder")
  FAST       (ms–s)   immediate response     fast_trace
  MEDIUM     (s–min)  occupancy + evidence   possible_tag · endurance_need · VGCC_active · AMPA_surface · RRP
  SLOW       (hr)     consolidation bridge   tag
  ─────────────────────────────────────────────────────────────────────────────
  PERSISTENT (NIGHT)  capacity (the ceilings) structure · budget_ceiling
                      energy (not recoverable) · material (recoverable)

THE DAY STRENGTH CLIMB (same three-tier averaging in every component):
  1. each ACTION leaves a fast_trace (FAST).
  2. the running AVERAGE of fast_traces over SECONDS fills occupancy → short-term strength
     (VGCC_active in PRE, AMPA_surface in POST, …); a LOW average lets occupancy drift back (STD).
  3. the AVERAGE-OF-THE-AVERAGE over MINUTES (possible_tag), in coincidence with dopamine, raises
     the TAG (SLOW) — the token passed to NIGHT. At night the tag is spent to modify structure
     (the persistent version of the same strength the occupancy held transiently).
  So occupancy is the fast/medium memory of participation; the tag is its dopamine-validated,
  night-consolidatable distillate. Same climb, same three tiers, in all six components.

DAY      budget · fast_trace · possible_tag · endurance_need
BRIDGE   tag (POST: CANDIDATE→STABLE)
NIGHT    energy (not recoverable) · material (recoverable) · structure · budget_ceiling

LOCALITY only local state + arrived signals; no component reads another's internal state.

CLEFT MESSAGE CHANNELS              SHIPMENT CHANNELS (transit-delayed)
  glutamate     PRE → POST, ASTRO     soma_ship_dend SOMA→DEND
  astro_Dserine ASTRO → POST          soma_ship_axon SOMA→AXON
  retro_NO      POST → PRE (+)        dend_ship_post DEND→POST
  retro_eCB     POST → PRE (−)        axon_ship_pre  AXON→PRE
```

---

## Primitives (return the increment; caller applies it)

```
sat(x, K) = x / (K + x)

fill(pool, ceiling, rate, cost, budget) -> amount:        // PRIVATE reserve, rate-limited (implicit τ)
    amount = min(rate, ceiling - pool)·Δt;  budget -= amount·cost;  return amount

refill(c from supply S) -> amount:                         // CONTESTED supply, gap-bounded
    demand = c.budget_ceiling - c.budget
    factor = min(1, S / (Σ demand over components on S + ε));  S -= demand·factor
    return demand·factor

ship(from_budget, demand_sig, frac, cost) -> amount:       // emit into transit (not to target directly)
    amount = min(from_budget·frac, demand_sig);  from_budget -= amount·(1+ship_cost);  return amount

transit(channel, τ_transport) -> arrival:                  // delivers in-transit cargo over τ
    arrival = channel·(Δt/τ_transport);  channel -= arrival;  return arrival
```

---

## SHARED parameters

```
dopamine  NE  ACh                         // organism broadcasts (external)
replay_reweight[·]                        // assembly/network replay re-weighting (external, NIGHT)
glucose  geometry                         // physical (external)
sleep_pressure                            // emitted by HYPOTHALAMUS, read by all (the day/night signal)
rest_thr  sleep_thr  wake_thr             // per-component DAY↔NIGHT transition thresholds
elig  dop_thr  tag_thr  tag_expiry        // strength gates (universal)
traj_thr  endur_thr                       // endurance gates (universal)
ship_cost                                 // transport overhead (all shipments)
{dend,axon,pre,post}_ship_frac            // DAY budget-shipment fractions
τ_transport_{dend,axon,spine,bouton}      // shipment transit times (distance-dependent)
ε
```

## NIGHT parameters (consolidation only)

```
slot_batch  cap_batch  f_cap              // per-CYCLE commit/allocation sizes / endurance fraction
night_energy_ceiling                      // total energy a single night can spend (supply bound)
Δt_cycle                                  // duration of one NIGHT cycle (NON_REM_1→REM→NON_REM_2)
maint_frac  cap_frac                      // maintenance allocation
decay_rate  capacity_decay_rate  recycle  // passive ceiling decay + material recovery
homeostatic_ceiling  assembly_cost  biogenesis_cost  maint_cost
f_dend  f_axon  f_spine  f_bouton         // per-cycle material/energy ship fractions (down the chain)
downscale_factor                          // per-cycle multiplicative occupancy reset (<1), NON_REM_1
neuron_weight_ceiling                     // renormalization target (broadcast constraint)
// ── NIGHT RING (NON_REM_1 = PREPARATION · REM = EVALUATION · NON_REM_2 = ACTION) ──
spont_thr_base  thr_gain                  // spontaneous threshold = base − gain×own_tag (NON_REM_1 prime)
prime_thr  prime_gain                     // tag threshold to raise VGCC, and the gain (NON_REM_1)
intrinsic_fluctuation()                   // intrinsic sub-threshold noise (the night's ignition source)
mini_flux  mini_Ca()                      // spontaneous mini release size + its Ca deposit (REM probe)
level(·) → {LOW, MEDIUM, HIGH}            // reads fast_trace as circuit participation (REM, no dopamine)
replay_AP                                 // propagated re-evocation spike (soma → axon/dend, self-igniting)
```

---
---
# LOCAL COMPONENTS
> Each behaves by its DAY and restructures by its NIGHT — per-component emergent states
> (see Conventions: the transition rule). `DAY | …` / `NIGHT | …` label local states, not a clock.
---

## PRE

The presynaptic bouton releases neurotransmitter and gathers evidence about whether that
release was worth strengthening and worth sustaining. Like every component it turns one ring —
ACTION → EVALUATION → PREPARATION — in two directions: outward by DAY (against the cleft), inward
by NIGHT (against the economy).

**DAY · ACTION (the AP) — the bouton releases.** The amount released depends on residual
**calcium** (the fast trace, set by this spike), the current **VGCC coupling occupancy** (how
tightly channels are coupled right now, bounded by structure), the two **retrograde messages**
(`retro_eCB` brakes, `retro_NO` confirms release reached a responsive target), and the
availability of **fuel and vesicles**. The action deposits the fast trace the rest of the turn
reads. Two shortfalls read differently: a fuel shortfall on a succeeding release is *endurance*
evidence; an empty pool with fuel to spare is ordinary short-term depression.

**DAY · EVALUATION (after the AP, trace fresh) — climb toward the tag.** Reading the fast trace,
the bouton accumulates eligibility (`possible_tag`) and, on the dopamine coincidence, the `tag` —
the inert token minted for the night. It never acts here; it lays down evidence.

**DAY · PREPARATION (trace decaying) — ready the next release.** The bouton latches the retrograde
messages, tightens its VGCC coupling from accumulated eligibility (reversible short-term
potentiation, no dopamine, bounded by structure — readiness, not evidence), refills budget and
vesicles *toward the next demand* (not a restoration — forward-facing), and lets its traces decay.
Preparation is the sole gateway to the next action.

**NIGHT — the ring turned inward.** ACTION is the coherence check (does post and astro concur this
**NIGHT — the same ring, rotated; release becomes a probe, structure-change becomes the act.**
The night runs the SAME three phases as the day (PREPARATION · ACTION · EVALUATION) — only the
subjects and the assignment of which phase is which rotate. NON_REM_1 = PREPARATION imports material
and energy and primes the threshold/VGCC from the standing tag. REM = EVALUATION releases NT — but
as a PROBE, to measure its own fast_trace as *participation* in the re-evoked circuit (no dopamine;
significance is settled). NON_REM_2 = ACTION is the structural change itself — the night's defining
deed: general homeostatic lowering, then increase where the tag still stands AND REM measured
high/medium participation, consuming the tag on the build. The same NT release is ACTION by day
(transmit) and EVALUATION by night (measure); the structural change is only marked by day (the inert
tag) and enacted by night. The bouton is not a sink — by night it emits inward and upward.

```
// PARAMETERS  K_release · release_cost · fusion_cost · vatpase_cost · spillover · brake
//             stp_thr · coupling_gain · coupling_drift · VGCC_baseline
// INTERFACE
//   EMIT      glutamate → POST, ASTRO
//   RECEIVE   retro_NO, retro_eCB ← POST  (signals latched in EVALUATION/PREPARATION; pools refill in PREPARATION)
//   READ      glutamate (own cleft, autobrake) ; dopamine (gates tag)
//   OWN       pre_structure{slot_ceiling, VGCC_coupling, refill_ceiling} ; pre_budget_ceiling
//             VGCC_active (occupancy: current coupling, filled toward VGCC_coupling ceiling)
//   SUPPLY    astro_lactate[syn] ← ASTRO ; axon_ship_pre ← AXON ; pre_material ← AXON(NIGHT) ; pre_energy ← SOMA(NIGHT)
//   EMERGENCY shockwave_lockdown ← ASTRO
//
// TRACE CREATION MODES (every trace: trace += input·Δt − trace·(Δt/τ_decay))
//   impulse    input = quantum·δ(event)  — a point event; no rise time, τ = decay only   (FAST)
//   accumulate input = rate(condition)·Δt — ramps while a condition holds; τ = rise AND decay (MEDIUM/SLOW)
//
// THE RING × CONTEXT (Option B: organize by imposed context, annotate with phase):
//   AP              → ACTION                         (release; deposit fast trace)
//   NOT_AP          → FAST eval + FAST prep          (rides the train; sets short-term depression)
//   NOT_SPIKE_TRAIN → SLOW eval + SLOW prep   ⊂ NOT_AP (runs ON TOP of NOT_AP in sustained quiet)
//   nested, not exclusive: each behavior in exactly ONE block, so nothing double-runs.

DAY | AP:                                                  // ACTION (lateral): release into cleft
    // deposit the fast trace THIS action leaves  (FAST · impulse)
    pre_fast_trace += spike_Ca(pre_structure.VGCC_coupling)·δ(spike)
    drive = sat(pre_fast_trace × VGCC_active, K_release) × (1 - retro_eCB_local)
    if pre_budget < release_cost:                          // FUEL shortfall → endurance evidence
        suppress(NT_flux)
        if pre_fast_trace > traj_thr:                      // MEDIUM · accumulate
            pre_endurance_need += pre_fast_trace × (1 + retro_NO_local)·Δt
        exit
    if RRP == 0:  suppress(NT_flux);  exit                 // OCCUPANCY shortfall → STD (not endurance)
    NT_flux = RRP × drive;  RRP -= NT_flux·Δt;  pre_budget -= NT_flux·fusion_cost
    glutamate += NT_flux·Δt                                // EMIT glutamate → POST, ASTRO
    if glutamate > spillover: drive *= brake               // own-cleft autobrake

DAY | NOT_AP:                                              // FAST eval + FAST prep (in-train gaps AND quiet)
    retro_NO_local = retro_NO;  retro_eCB_local = retro_eCB     // latch arrived signals
    // FAST EVAL: eligibility climbs from the fresh trace  (MEDIUM · accumulate)
    if pre_fast_trace > elig: pre_possible_tag += pre_fast_trace·Δt
    // FAST PREP: partial vesicle refill (release-vs-refill race → sets STD depth) + fast-trace decay
    RRP += fill(RRP, pre_structure.slot_ceiling, pre_structure.refill_ceiling, vatpase_cost, pre_budget)
    pre_fast_trace *= decay(100ms)                                          // FAST — rides the train

DAY | NOT_SPIKE_TRAIN:                                     // SLOW eval + SLOW prep (sustained quiet; ⊂ NOT_AP)
    // SLOW EVAL: dopamine-gated tag — the inert token minted for NIGHT  (SLOW · accumulate)
    if dopamine > dop_thr and pre_possible_tag > tag_thr:
        pre_tag += dopamine × pre_possible_tag·Δt
    // SLOW PREP: STP read-out (eligibility → coupling readiness; NO dopamine; drifts back)
    if pre_possible_tag > stp_thr:
        VGCC_active = min(VGCC_active + coupling_gain × pre_possible_tag, pre_structure.VGCC_coupling)
    else:
        VGCC_active = max(VGCC_active - coupling_drift·Δt, VGCC_baseline)   // STD = un-honored decay
    // SLOW PREP: full budget refill toward next demand (forward-facing, not restoration)
    pre_budget += refill(pre from astro_lactate[syn] + transit(axon_ship_pre, τ_transport_bouton))
    // medium/slow settle (fast-trace decay already ran in NOT_AP; not repeated here)
    pre_possible_tag *= decay(s);  pre_endurance_need *= decay(min)         // MEDIUM
    pre_tag *= decay(hr)                                                    // SLOW
    dopamine *= decay(ms);  retro_NO *= decay(s);  retro_eCB *= decay(s)

// ── NIGHT: a cycle of NON_REM_1 → REM → NON_REM_2, repeated until the tag is spent (dual of DAY,
//    which loops until energy is spent). SAME RING as DAY, only the SUBJECTS and the assignment of
//    ACTION/EVALUATION rotate — the same physical NT release is ACTION by DAY (transmit) and
//    EVALUATION by NIGHT (probe to measure participation). One TAG, three roles: (day) significance
//    bridge; (NON_REM_1) primes threshold/VGCC; (NON_REM_2) gates + fuels the build, then consumed.
//      NON_REM_1 = PREPARATION (import + prime)   — vertical
//      REM       = EVALUATION  (release to MEASURE participation; NO dopamine) — local/measuring
//      NON_REM_2 = ACTION      (the structural change itself — the night's defining deed) — the act

NIGHT · NON_REM_1 = PREPARATION | import + prime:          // vertical: supply + set excitability
    // import this cycle's material + energy (forward-facing)
    pre_material += transit(pre_material_ship, τ_transport_bouton)
    pre_energy   += transit(pre_energy_ship,   τ_transport_bouton)
    // prime from the STANDING tag: high tag lowers threshold → raises VGCC (else leave unchanged)
    pre_spont_thr = spont_thr_base − thr_gain × pre_tag
    if pre_tag > prime_thr:
        VGCC_active = min(VGCC_active + prime_gain × pre_tag, pre_structure.VGCC_coupling)
    // apply descended constraint to MYSELF (broadcast only); recycle
    pre_possible_tag *= occupancy_downscale
    if renorm_signal arrived:
        freed = pre_structure × (1 - renorm_signal);  pre_structure *= renorm_signal
        emit(freed → recycled material pool)
    pre_material += pre_ceiling_shrinkage·recycle          // energy NOT recovered

NIGHT · REM = EVALUATION | release to MEASURE participation (NO dopamine):   // local: probe, not transmit
    // release using the primed VGCC — a PROBE, deposits fast trace (same channel as DAY, different purpose)
    spont = intrinsic_fluctuation()
    if spont > pre_spont_thr or arrived_replay_AP:         // spontaneous, or recruited by the propagating pattern
        pre_fast_trace += mini_Ca(VGCC_active);  glutamate += mini_flux·Δt
    // READ the fast trace as PARTICIPATION in the re-evoked circuit — no dopamine, no tag accumulation
    pre_participation = level(pre_fast_trace)              // high / medium / low = circuit centrality
    pre_fast_trace *= decay(100ms)

NIGHT · NON_REM_2 = ACTION | change the structure (the night's defining deed):   // the irreversible act
    // (1) general homeostatic lowering of structure — the subtractive baseline
    pre_structure -= decay_rate·Δt_cycle
    pre_structure += min(pre_maint, maint_cost)            // maintenance holds up what is used
    // (2) increase structure where the tag STILL STANDS and REM measured high/medium participation
    if rest_permission and pre_tag > tag_expiry and pre_participation ≥ MEDIUM:
        Δ = min(slot_batch, pre_material, pre_energy·f_cap, pre_tag) × pre_participation
        pre_structure += Δ;  pre_material -= Δ;  pre_energy -= Δ·assembly_cost
        pre_tag -= Δ                                       // (3) CONSUME tag on build → threshold rises next cycle
    // endurance capacity (fuel-limited succeeding release) builds on the same act
    if pre_endurance_need > endur_thr:
        Δ' = min(cap_batch, pre_material·f_cap, pre_energy·f_cap)
        pre_budget_ceiling += Δ';  pre_material -= Δ';  pre_energy -= Δ'·biogenesis_cost
        pre_endurance_need -= Δ'
    else:
        pre_budget_ceiling -= capacity_decay_rate·Δt_cycle;  pre_budget_ceiling += min(pre_cap_maint, cap_cost)
    // if tag low or participation low: no build — the change was never worth the spend (forgotten)
    pre_endurance_need *= decay(slow)
    emit(pre_fatigue, pre_demand → upward)                 // not a sink: emits inward/upward by night
```

---

## POST

The postsynaptic spine is the synapse's primary memory locus: it detects coincident input,
runs the calcium dynamics that decide potentiation versus depression, and requires the most
validation (three coincidences) before committing.

**POST's ACTION is the synaptic event (context NOT_bAP).** Integration is graded and ongoing
rather than spike-punctate, so POST's action-context is "glutamate present, no bAP": three calcium
sources feed the fast trace — AMPA current (small Ca, begins ejecting the NMDA Mg block) and NMDA
(large Ca, only on the local coincidence of depolarization + astrocyte D-serine + glutamate). The
action deposits the calcium trace and emits the two retrograde messages. Because POST's receptors
are physical coincidence detectors, two of its three tag-coincidences (astro D-serine, and the bAP
below) are detected *in the action*; only the organism's dopamine coincidence is left to evaluation.

**bAP is a second, vertical action-context.** The soma's back-propagating spike arrives, adds
depolarization and calcium, and supralinearly amplifies an existing candidate — the soma's
confirmation that it fired, detected in the action-moment (instantaneous coincidence).

**EVALUATION and PREPARATION share the quiet.** Evaluation reads the calcium trace and, on the
dopamine coincidence, climbs to the tag. Preparation fills AMPA surface toward the slot ceiling
from accumulated calcium (short-term potentiation, no dopamine), refills budget toward next demand,
and lets traces settle. A fuel shortfall while calcium was climbing toward a tag is endurance
evidence; a surface already at its ceiling is a structural limit, not endurance.

**During NIGHT — the spine's ceilings are rewritten.** The ring turned inward: coherence check,
draw-and-commit (structure where a validated tag stood — with a coherence bonus when pre, post, and
astro all tagged the same synapse — or budget capacity where fuel interrupted a climbing trajectory),
make-room. Both ceilings draw the same finite pool and compete; unmaintained ceilings drift down.

```
// PARAMETERS  K_AMPA · AMPA_Ca · AMPA_cost · NMDA_cost · bAP_cost · pka_cost · traffic_cost
//             req_cost · Mg_eject · Dserine_thr · Ca_STP · Ca_TAG · eCB_thr · drift · baseline
//             NO_synth_cost · eCB_synth_cost
// INTERFACE
//   EMIT      retro_NO (+), retro_eCB (−) → PRE
//   RECEIVE   (signals) glutamate ← PRE ; astro_Dserine ← ASTRO ; bAP ← DEND/SOMA ; dopamine
//   READ      glutamate ; astro_Dserine ; bAP (dend_structure.bAP_fidelity) ; dopamine
//   OWN       post_structure{slot_ceiling, spine_volume, reserve_ceiling} ; post_budget_ceiling
//   SUPPLY    astro_lactate[syn] ← ASTRO ; dend_ship_post ← DEND ; post_material ← DEND(NIGHT) ; post_energy ← SOMA(NIGHT)
//   EMERGENCY shockwave_lockdown ← ASTRO
// NOTE      POST endurance is own-state only (own Ca climbing); no arrived feedback term.
// RING × CONTEXT:  NOT_bAP → ACTION(integrate) + EVAL + PREP  |  bAP → second ACTION (vertical amplify)
//                  coincidences sort by timescale: D-serine/bAP detected IN ACTION (instantaneous),
//                  dopamine detected IN EVALUATION (integrable).

DAY | bAP:                                                 // ACTION (vertical): soma's spike confirms
    Vm += bAP_depol × dend_structure.bAP_fidelity;  post_budget -= bAP_cost
    if post_possible_tag > Ca_TAG: post_fast_trace += bAP_Ca_boost()   // amplify only if candidate present

DAY | NOT_bAP:                                             // ACTION(integrate) then EVAL + PREP
    // ── ACTION (lateral): integrate arrived input, detect instantaneous coincidences, emit retro ──
    a = sat(glutamate, K_AMPA)
    AMPA_current = a × AMPA_surface;  Vm += AMPA_current;  post_budget -= AMPA_cost   // SOURCE 1 AMPA
    post_fast_trace += AMPA_Ca·AMPA_current
    if Vm > Mg_eject and astro_Dserine > Dserine_thr and glutamate > 0:               // SOURCE 2 NMDA
        post_fast_trace += NMDA_Ca(glutamate)·rise_speed();  post_budget -= NMDA_cost  // (coincidence #1,2 here)
        retro_NO += NO_emit(post_fast_trace);  post_budget -= NO_synth_cost           // EMIT + "responsive target"
    if Vm > eCB_thr:
        retro_eCB += eCB_emit(Vm);  post_budget -= eCB_synth_cost                     // EMIT − brake
    // ── EVALUATION (local): climb toward the tag; dopamine is the integrable coincidence (#3) ──
    if post_fast_trace > Ca_TAG: post_possible_tag += post_fast_trace;  post_budget -= pka_cost
    if dopamine > dop_thr and post_possible_tag > tag_thr:
        post_tag += dopamine × post_possible_tag           // token minted for NIGHT
    // ── PREPARATION (vertical): STP fill / STD drift, refill toward next demand, settle ──
    if post_fast_trace > Ca_STP:
        if post_budget < traffic_cost:                     // FUEL shortfall → endurance
            if post_fast_trace > traj_thr and post_fast_trace_rising:
                post_endurance_need += post_fast_trace
        else if AMPA_surface < post_structure.slot_ceiling:
            AMPA_surface += Ca_insert(post_fast_trace);  post_budget -= traffic_cost
        // else: surface at slot_ceiling → structure-limited (not endurance)
    else:
        AMPA_surface = max(AMPA_surface - drift·Δt, baseline)   // STD = un-honored decay
    post_budget += refill(post from astro_lactate[syn] + transit(dend_ship_post, τ_transport_spine))
    post_fast_trace *= decay(ms)                                            // FAST
    post_possible_tag *= decay(min);  post_endurance_need *= decay(min)     // MEDIUM
    post_tag *= decay(hr);  dopamine *= decay(ms)                           // SLOW + signals

NIGHT · NON_REM_1 = PREPARATION | import + prime:          // vertical: supply + set responsiveness
    post_material += transit(post_material_ship, τ_transport_spine)
    post_energy   += transit(post_energy_ship,   τ_transport_spine)
    // prime from the STANDING tag: high tag raises AMPA occupancy → primes NMDA responsiveness in REM
    post_spont_thr = spont_thr_base − thr_gain × post_tag
    if post_tag > prime_thr:
        AMPA_surface = min(AMPA_surface + prime_gain × post_tag, post_structure.slot_ceiling)
    post_possible_tag *= occupancy_downscale
    if renorm_signal arrived:
        freed = post_structure × (1 - renorm_signal);  post_structure *= renorm_signal
        emit(freed → recycled material pool)
    post_material += post_ceiling_shrinkage·recycle        // energy NOT recovered

NIGHT · REM = EVALUATION | respond to re-evoked input, MEASURE participation (NO dopamine):
    // a re-evoked pattern arrives as replayed glutamate (from PRE's mini) ± bAP; POST responds as a PROBE
    if arrived_glutamate_replay or arrived_replay_AP:
        post_fast_trace += AMPA_Ca·(a × AMPA_surface)
        if Vm > Mg_eject and astro_Dserine > Dserine_thr: post_fast_trace += NMDA_Ca(glutamate)
    post_participation = level(post_fast_trace)            // high/medium/low = centrality in re-evoked pattern
    post_fast_trace *= decay(ms)

NIGHT · NON_REM_2 = ACTION | change the structure:         // the night's defining deed
    post_structure -= decay_rate·Δt_cycle;  post_structure += min(post_maint, maint_cost)   // homeostatic lowering
    if post_tag > tag_expiry and post_participation ≥ MEDIUM:
        Δ = min(slot_batch, post_material, post_energy·f_cap, post_tag) × post_participation
        post_structure += Δ;  post_material -= Δ;  post_energy -= Δ·assembly_cost
        post_tag -= Δ                                       // CONSUME on build
    if post_endurance_need > endur_thr:
        Δ' = min(cap_batch, post_material·f_cap, post_energy·f_cap)
        post_budget_ceiling += Δ';  post_material -= Δ';  post_energy -= Δ'·biogenesis_cost
        post_endurance_need -= Δ'
    else:
        post_budget_ceiling -= capacity_decay_rate·Δt_cycle;  post_budget_ceiling += min(post_cap_maint, cap_cost)
    post_endurance_need *= decay(slow)
    emit(post_fatigue, post_demand → upward)               // not a sink: emits inward/upward by night
```

---

## DEND

The dendritic branch is the postsynapse's supply line and the neuron's input integrator. It
carries the back-propagating spike out to its spines, integrates their voltages toward the
soma, and ships material and budget to the spines it supports. Its behavior unfolds across two
DAY contexts and the NIGHT scope.

**During DAY, during bAP — the branch propagates and integrates.** When the soma fires, the
branch propagates the back-propagating spike toward its spines, with a fidelity that attenuates
with distance (distal spines get weaker confirmation, are harder to potentiate). It deposits
branch calcium and integrates its spines' voltages into a single branch signal sent on to the
soma. A fuel shortfall that cuts propagation short while the branch was strongly active is
endurance evidence; propagation that simply attenuates with distance is a structural limit, not
endurance.

**During DAY, during NOT_bAP — the branch consolidates, supplies, and recovers.** It maintains
its tag toward consolidation, lowers its commit threshold under acetylcholine (attention),
ships budget down to its spines (demand-weighted by their tags), runs local translation if
tagged, refills its own budget from astrocytic lactate and somatic shipment, and lets its
traces decay.

**During NIGHT — the branch's ceilings are rewritten.** NIGHT raises **structure** (bAP
fidelity, translation capacity) where a validated tag accumulated and **budget capacity** where
fuel interrupted strong branch activity, both from the shared pool, both competing; unmaintained
ceilings drift down.

```
// PARAMETERS  prop_cost · branch_Ca_cost · integrate_cost · translate_cost · ACh_gain
// INTERFACE
//   EMIT      bAP_local → POST ; branch_Vm → SOMA ; dend_ship_post → POST
//   RECEIVE   (signals) SOMA.fired ; POST.Vm + spine spillover ; dopamine ; ACh
//   READ      SOMA.fired ; POST.Vm + spine spillover ; dopamine ; ACh
//   OWN       dend_structure{bAP_fidelity(pos), translation_ceiling, transport_speed} ; dend_budget_ceiling
//   SUPPLY    astro_lactate[branch] ← ASTRO ; soma_ship_dend ← SOMA ; dend_material, dend_energy ← SOMA(NIGHT)
//   NOTE      DEND endurance fires only on FUEL-limited propagation, not structural attenuation;
//             own-state proxy (strong branch activity); no arrived feedback term.

// RING × CONTEXT:  bAP → ACTION(propagate+integrate) + EVAL  |  NOT_bAP → EVAL + PREP (ship/refill/settle)

DAY | bAP:                                                 // ACTION (lateral/vertical): propagate + integrate
    // ADJUST    (propagation strength from structure — inside propagate())
    // BEHAVE    (propagate bAP; distinguish fuel-limited vs structure-limited shortfall)
    if dend_budget < prop_cost:
        // FUEL shortfall → endurance (branch was strongly active)
        if dend_fast_trace > traj_thr:
            dend_endurance_need += dend_fast_trace
        bAP_local, reached = propagate_partial(dend_budget)
    else:
        bAP_local, reached = propagate(SOMA.fired, dend_structure.bAP_fidelity, geometry)
        // reached < full here is structural attenuation (distance), NOT endurance
    dend_budget -= prop_cost × reached
    // TRACE     (deposit fast trace THIS action leaves)
    dend_fast_trace += bAP_Ca(bAP_local) + spine_spillover();  dend_budget -= branch_Ca_cost
    // EMIT      (integrated voltage to soma ; propagated bAP already reached spines)
    branch_Vm = integrate(POST.Vm, spines);  dend_budget -= integrate_cost

DAY | NOT_bAP:                                             // EVALUATION (climb to tag) + PREPARATION (ship/refill/settle)
    // EVAL: strength climb
    if dend_fast_trace > elig: dend_possible_tag += dend_fast_trace
    if dopamine > dop_thr and dend_possible_tag > tag_thr:
        dend_tag += dopamine × dend_possible_tag           // token minted for NIGHT
    // PREP: attention lowers commit threshold; local translation; ship to spines; refill; settle
    commit_threshold *= 1/(1 + ACh·ACh_gain)
    if dend_tag > tag_expiry and dend_budget > translate_cost: dend_budget -= translate_cost
    dend_ship_post = ship(dend_budget, post_demand, post_ship_frac, ship_cost)   // EMIT down to spines
    dend_budget += refill(dend from astro_lactate[branch] + transit(soma_ship_dend, τ_transport_dend))
    // DECAY
    //   FAST   (ms–s)
    dend_fast_trace *= decay(300ms)
    //   MEDIUM (s–min)
    dend_possible_tag *= decay(s);  dend_endurance_need *= decay(min)
    //   SLOW   (hr)
    dend_tag *= decay(hr)
    //   (PERSISTENT: dend_structure, dend_budget_ceiling — no DAY decay; NIGHT only)

NIGHT · NON_REM_1 = PREPARATION | import + prime + relay setup:   // vertical: supply + excitability
    dend_material += transit(soma_material_to_dend, τ_transport_dend)
    dend_energy   += transit(soma_energy_to_dend,   τ_transport_dend)
    dend_spont_thr = spont_thr_base − thr_gain × dend_tag  // prime own bAP-relay excitability from own tag
    if renorm_signal arrived:
        freed = dend_structure × (1 - renorm_signal);  dend_structure *= renorm_signal
        emit(freed → recycled material pool)
    dend_material += dend_ceiling_shrinkage·recycle        // energy NOT recovered
    // ship this cycle's batch one hop down to POST (feeds the pattern's spine links)
    post_material_ship += ship(dend_material, post_demand, f_spine, ship_cost)
    post_energy_ship   += ship(dend_energy,   post_demand, f_spine, ship_cost)

NIGHT · REM = EVALUATION | relay replay_AP if primed + MEASURE participation (NO dopamine):
    // an arrived replay_AP (from SOMA) re-evokes the branch — relay onward to spines IF primed
    if arrived_replay_AP and dend_spont_thr < recruit_thr:
        bAP_local = propagate(replay_AP, dend_structure.bAP_fidelity, geometry)
        emit(bAP_local → POST)                            // carries the pattern to the spines IF primed
        dend_fast_trace += bAP_Ca(bAP_local)
    dend_participation = level(dend_fast_trace)           // high/medium/low = branch centrality
    dend_fast_trace *= decay(300ms)

NIGHT · NON_REM_2 = ACTION | change the structure:         // the night's defining deed
    dend_structure -= decay_rate·Δt_cycle;  dend_structure += min(dend_maint, maint_cost)   // homeostatic lowering
    if dend_tag > tag_expiry and dend_participation ≥ MEDIUM:
        Δ = min(slot_batch, dend_material, dend_energy·f_cap, dend_tag) × dend_participation
        dend_structure += Δ;  dend_material -= Δ;  dend_energy -= Δ·assembly_cost;  dend_tag -= Δ
    if dend_endurance_need > endur_thr:
        Δ' = min(cap_batch, dend_material·f_cap, dend_energy·f_cap)
        dend_budget_ceiling += Δ';  dend_material -= Δ';  dend_energy -= Δ'·biogenesis_cost
        dend_endurance_need -= Δ'
    else:
        dend_budget_ceiling -= capacity_decay_rate·Δt_cycle;  dend_budget_ceiling += min(dend_cap_maint, cap_cost)
    dend_endurance_need *= decay(slow)
    emit(dend_fatigue, dend_demand → upward)
```

---

## SOMA

The soma is the neuron's integrating center and the root of its structural material. It sums
the branch inputs, fires when they exceed a threshold it sets from its own adaptation and the
neuromodulators, and ships material and budget out to the dendrites and axon. Its timing —
refractoriness, adaptation, rhythm alignment — emerges bottom-up from local traces, never from
a represented clock. Its behavior unfolds across two DAY contexts and the NIGHT scope.

**During DAY, during AP — the soma integrates and fires.** It computes its firing threshold
from its baseline (structure), its accumulated adaptation, and the neuromodulators, and checks
its refractory state; if the integrated branch input clears the threshold and fuel allows, it
fires. One spike deposits three traces at three timescales — sodium inactivation (refractory),
slow-potassium adaptation (threshold rise), and nuclear calcium (toward CREB and the tag). A
fuel shortfall while nuclear calcium was climbing is endurance evidence; being refractory or
sub-threshold is a timing limit, not endurance.

**During DAY, during NOT_AP — the soma recovers, aligns, and supplies.** It self-replenishes
from its own mitochondria (its private root), integrates the latest branch inputs, deposits a
refractory-alignment trace when suprathreshold input arrived during its refractory period (so it
aligns to its input rhythm bottom-up), ships budget to dendrites and axon (demand-weighted by
their tags), recovers from refractoriness at a rate its alignment trace speeds up, and lets its
traces decay.

**During NIGHT — the soma's ceilings are rewritten, and it gates the whole neuron's material.**
NIGHT raises **structure** (excitability, synthesis capacity) and **budget capacity** from the
shared pool; crucially the soma's own tag gates CREB-driven synthesis, so how much material all
downstream components receive depends on the soma having been tagged.

```
// PARAMETERS  ap_cost · nuclear_cost · creb_cost · mito_output · inactivation · ap_amp · ap_contrib
//             base_recovery · τ_Na · τ_adapt · τ_nuclear · τ_align
// INTERFACE
//   EMIT      fired → AXON (propagate) + DEND (bAP) ; soma_ship_dend → DEND ; soma_ship_axon → AXON
//   RECEIVE   (signals) branch_Vm ← DEND ; dopamine ; NE ; ACh
//   READ      dopamine ; NE ; ACh
//   OWN       soma_structure{baseline_threshold, AP_reliability, synthesis_ceiling} ; soma_budget_ceiling
//   SUPPLY    self (mitochondria, ROOT — private)
//   NOTE      SOMA endurance fires only on FUEL shortfall (budget < ap_cost);
//             refractory / sub-threshold are timing limits, not endurance. Own-state proxy.

// RING × CONTEXT:  AP → ACTION(fire) + EVAL(nuclear Ca→tag)  |  NOT_AP → EVAL + PREP
//   the ONE spike's fast trace feeds TWO destinations: nuclear-Ca → tag (EVALUATION, cross-scope),
//   and inactivation/adaptation/alignment → next-spike timing (PREPARATION, this scope).

DAY | AP:                                                  // ACTION (lateral): fire; then EVAL climbs to tag
    // ADJUST    (threshold from structure + adaptation + neuromodulators ; refractory gate)
    threshold = soma_structure.baseline_threshold × (1 + soma_adaptation) × neuromod(NE, ACh)
    can_fire  = soma_Na_inactivation < inactivation
    // ACTION    (fire if able)
    if branch_Vm > threshold and can_fire:
        if soma_budget < ap_cost:
            // FUEL shortfall → endurance (firing was approaching CREB)
            if soma_fast_trace > traj_thr and soma_fast_trace_rising:
                soma_endurance_need += soma_fast_trace
            exit
        fired = True;  soma_budget -= ap_cost              // EMIT fired → AXON, DEND
        // deposit the THREE traces from one AP: nuclear-Ca (→EVAL) + adaptation/inactivation (→PREP)
        soma_Na_inactivation += ap_amp                     // PREP seed: refractory (emergent)
        soma_adaptation      += ap_contrib                 // PREP seed: threshold rise
        soma_fast_trace      += nuclear_Ca();  soma_budget -= nuclear_cost   // EVAL seed
        // EVALUATION: strength climb toward the tag (cross-scope token for NIGHT)
        if soma_fast_trace > elig: soma_possible_tag += soma_fast_trace
        if dopamine > dop_thr and soma_possible_tag > tag_thr:
            soma_tag += dopamine × soma_possible_tag
        soma_budget -= creb_cost
        soma_emitted_activity += 1;  soma_emitted_structure = soma_structure   // NEURON sums these

DAY | NOT_AP:                                              // EVAL (align) + PREP (recover timing, ship, refill)
    branch_Vm = integrate(DEND.branch_Vm, branches)        // RECEIVE latest branch input
    // PREP seed: refractory alignment (suprathreshold input during refractory → tune next-spike timing)
    if branch_Vm > threshold and soma_Na_inactivation > inactivation:
        soma_refractory_alignment += (branch_Vm - threshold) × soma_Na_inactivation
    // PREP: ship downstream, self-replenish from root, recover refractoriness (sped by alignment)
    soma_ship_dend = ship(soma_budget, dend_demand, dend_ship_frac, ship_cost)
    soma_ship_axon = ship(soma_budget, axon_demand, axon_ship_frac, ship_cost)
    soma_budget += fill(soma_budget, soma_budget_ceiling, mito_output, 0, soma_budget)
    recovery = base_recovery × (1 + soma_refractory_alignment)
    soma_Na_inactivation *= decay(τ_Na / recovery)
    // DECAY
    //   FAST   (ms–s) — refractory + nuclear-Ca + alignment
    soma_fast_trace *= decay(τ_nuclear);  soma_refractory_alignment *= decay(τ_align)  // self-limiting
    //   MEDIUM (s–min) — adaptation + tagging evidence
    soma_adaptation *= decay(τ_adapt)
    soma_possible_tag *= decay(s);  soma_endurance_need *= decay(min)
    //   SLOW   (hr)
    soma_tag *= decay(hr);  dopamine *= decay(ms)

// ── NIGHT: NON_REM_1 → REM → NON_REM_2, until tag spent (same ring as PRE, rotated). SOMA is a
//    ROOT (produces material each cycle) AND the IGNITION POINT: its REM firing propagates a replay
//    AP down axon + dendrites, re-evoking the pattern through the DAY PATHWAY. A pattern carries only
//    if every link is primed (each component's own tag lowered its own threshold). SOMA's own
//    firing/participation is measured the way PRE measures release; NON_REM_2 is its structural act.

NIGHT · NON_REM_1 = PREPARATION | produce + prime:         // vertical: production + excitability + supply
    // PRODUCTION (root): this cycle's material + energy batch, gated by own tag, capped externally
    soma_material += CREB_synth(soma_tag)·Δt_cycle         // material — recoverable
    soma_energy   += mito_synth()·Δt_cycle                 // energy — NOT recoverable
    night_energy_spent += mito_synth()·Δt_cycle
    // prime OWN spontaneous-firing threshold from OWN standing tag (high tag → easier to ignite)
    soma_spont_thr = spont_thr_base − thr_gain × soma_tag
    // ship this cycle's batch down to DEND and AXON (feeds the pattern's downstream links)
    soma_material_to_dend += ship(soma_material, dend_demand, f_dend, ship_cost)
    soma_material_to_axon += ship(soma_material, axon_demand, f_axon, ship_cost)
    soma_energy_to_dend   += ship(soma_energy,   dend_demand, f_dend, ship_cost)
    soma_energy_to_axon   += ship(soma_energy,   axon_demand, f_axon, ship_cost)
    soma_material += soma_ceiling_shrinkage·recycle        // recycle

NIGHT · REM = EVALUATION | fire to ignite + MEASURE participation (NO dopamine):   // ignition + probe
    spont = intrinsic_fluctuation()
    if spont > soma_spont_thr:
        replay_AP = TRUE
        soma_fast_trace += nuclear_Ca()                    // deposit trace (the measurement)
        // propagate down the DAY PATHWAY (self-igniting): AP → axon → boutons ; bAP → dendrites/spines
        emit(replay_AP → AXON, DEND)                       // AXON/DEND relay onward IF primed
    // pattern carries link by link, each relaying only if primed (mechanical coherence):
    //   SOMA →[replay_AP]→ AXON(primed?) →→ PRE(primed?) →[glutamate]→ POST(primed?) →→ DEND →→ SOMA
    //   a single un-primed link breaks the loop — only all-primed patterns re-evoke.
    soma_participation = level(soma_fast_trace)            // high/medium/low = circuit centrality (no dopamine)
    soma_fast_trace *= decay(τ_nuclear)

NIGHT · NON_REM_2 = ACTION | change the structure:         // the night's defining deed
    soma_structure -= decay_rate·Δt_cycle;  soma_structure += min(soma_maint, maint_cost)   // homeostatic lowering
    if soma_tag > tag_expiry and soma_participation ≥ MEDIUM:
        Δ = min(slot_batch, soma_material, soma_energy·f_cap, soma_tag) × soma_participation
        soma_structure += Δ;  soma_material -= Δ;  soma_energy -= Δ·assembly_cost
        soma_tag -= Δ                                       // CONSUME on build → threshold rises next cycle
        if soma_endurance_need > endur_thr:
            Δ' = min(cap_batch, soma_material·f_cap, soma_energy·f_cap)
            soma_budget_ceiling += Δ';  soma_material -= Δ';  soma_energy -= Δ'·biogenesis_cost
            soma_endurance_need -= Δ'
    // if tag low or participation low: no build — never worth the spend (forgotten)
    soma_endurance_need *= decay(slow)
```

---

## AXON

The axon carries the soma's spike out to its boutons and is the presynapse's supply line. It
propagates reliably or not depending on its myelination and its recent load, and ships material
and budget to the boutons. Its behavior unfolds across two DAY contexts and the NIGHT scope.

**During DAY, during AP — the axon propagates the spike.** Reliability is set by structure
(myelination) and degraded by recent high-frequency load (sodium inactivation at branch points —
axonal short-term depression). A fuel shortfall while carrying a strong train is endurance
evidence; load-driven failure is short-term depression, a consequence, not endurance.

**During DAY, during NOT_AP — the axon supplies and recovers.** It maintains its tag, ships
budget to its boutons (demand-weighted by their tags), refills its own budget from somatic
shipment and astrocytic lactate, and lets its traces decay.

**During NIGHT — the axon's ceilings are rewritten.** NIGHT raises **structure** (myelination,
transport capacity) and **budget capacity** from the shared pool, both competing; unmaintained
ceilings drift down.

```
// PARAMETERS  prop_cost · budget_factor
// INTERFACE
//   EMIT      APs_delivered → PRE (propagation) ; axon_ship_pre → PRE
//   RECEIVE   (signals) SOMA.fired ; dopamine
//   READ      SOMA.fired ; dopamine
//   OWN       axon_structure{propagation, transport_ceiling, mito_density} ; axon_budget_ceiling
//   SUPPLY    soma_ship_axon ← SOMA ; astro_lactate[shaft] ← ASTRO ; axon_material, axon_energy ← SOMA(NIGHT)
//   NOTE      AXON endurance fires only on FUEL shortfall; load-driven failure fail(fast_trace)
//             is axonal STD (a consequence), not endurance. Own-state proxy.

// RING × CONTEXT:  AP → ACTION(propagate)  |  NOT_AP → EVAL(climb to tag) + PREP(ship/refill/settle)

DAY | AP:                                                  // ACTION (lateral): propagate the spike
    // ADJUST    (reliability from structure − load-driven failure)
    reliability = axon_structure.propagation × (1 - fail(axon_fast_trace))   // fail() = STD, not endurance
    if axon_budget < prop_cost:
        reliability *= budget_factor
        if axon_fast_trace > traj_thr:                     // FUEL-limited → endurance
            axon_endurance_need += axon_fast_trace
    delivered = fired × reliability;  axon_budget -= prop_cost × delivered    // EMIT delivered → boutons
    axon_fast_trace += delivered;  axon_fast_trace *= decay(s)                // deposit fast trace

DAY | NOT_AP:                                              // EVALUATION (climb to tag) + PREPARATION
    // EVAL: strength climb → token for NIGHT
    if axon_fast_trace > elig: axon_possible_tag += axon_fast_trace
    if dopamine > dop_thr and axon_possible_tag > tag_thr:
        axon_tag += dopamine × axon_possible_tag
    // PREP: ship to boutons, refill toward next demand, settle
    axon_ship_pre = ship(axon_budget, pre_demand, pre_ship_frac, ship_cost)
    axon_budget += refill(axon from soma_ship_axon + astro_lactate[shaft])
    // DECAY
    //   FAST   (ms–s)
    axon_fast_trace *= decay(s)
    //   MEDIUM (s–min)
    axon_possible_tag *= decay(s);  axon_endurance_need *= decay(min)
    //   SLOW   (hr)
    axon_tag *= decay(hr)

NIGHT · NON_REM_1 = PREPARATION | import + prime + relay setup:   // vertical: supply + excitability
    axon_material += transit(soma_material_to_axon, τ_transport_dend)
    axon_energy   += transit(soma_energy_to_axon,   τ_transport_dend)
    axon_spont_thr = spont_thr_base − thr_gain × axon_tag  // prime own relay excitability from own tag
    if renorm_signal arrived:
        freed = axon_structure × (1 - renorm_signal);  axon_structure *= renorm_signal
        emit(freed → recycled material pool)
    axon_material += axon_ceiling_shrinkage·recycle        // energy NOT recovered
    // ship this cycle's batch one hop down to PRE (feeds the pattern's bouton links)
    pre_material_ship += ship(axon_material, pre_demand, f_bouton, ship_cost)
    pre_energy_ship   += ship(axon_energy,   pre_demand, f_bouton, ship_cost)

NIGHT · REM = EVALUATION | relay replay_AP if primed + MEASURE participation (NO dopamine):
    // an arrived replay_AP (from SOMA) — relay onward to boutons IF primed (this carries SOMA→PRE)
    if arrived_replay_AP and axon_spont_thr < recruit_thr:
        delivered = reliability × axon_structure.propagation
        emit(replay_AP → PRE)                             // carries the pattern to the boutons IF primed
        axon_fast_trace += delivered
    axon_participation = level(axon_fast_trace)           // high/medium/low = shaft centrality
    axon_fast_trace *= decay(s)

NIGHT · NON_REM_2 = ACTION | change the structure:         // the night's defining deed
    axon_structure -= decay_rate·Δt_cycle;  axon_structure += min(axon_maint, maint_cost)   // homeostatic lowering
    if axon_tag > tag_expiry and axon_participation ≥ MEDIUM:
        Δ = min(slot_batch, axon_material, axon_energy·f_cap, axon_tag) × axon_participation
        axon_structure += Δ;  axon_material -= Δ;  axon_energy -= Δ·assembly_cost;  axon_tag -= Δ
    if axon_endurance_need > endur_thr:
        Δ' = min(cap_batch, axon_material·f_cap, axon_energy·f_cap)
        axon_budget_ceiling += Δ';  axon_material -= Δ';  axon_energy -= Δ'·biogenesis_cost
        axon_endurance_need -= Δ'
    else:
        axon_budget_ceiling -= capacity_decay_rate·Δt_cycle;  axon_budget_ceiling += min(axon_cap_maint, cap_cost)
    axon_endurance_need *= decay(slow)
    emit(axon_fatigue, axon_demand → upward)
```

---

## ASTROSYNAPSE

> The astrosynapse is the perisynaptic astrocytic process — the LOCAL component at one synapse,
> the astroglial peer of pre/post and a constituent of the ASTROCYTE actor (which integrates
> across all of them, just as the NEURON integrates over the soma). The astrosynapse behaves
> locally here; the astrocyte integrates and broadcasts (see CELL ACTORS).

The astrosynapse is the synapse's gatekeeper and energy hub. It clears glutamate, supplies the
D-serine that gates postsynaptic NMDA, and distributes lactate across its territory by demand.
Unlike the others it runs in a single continuous context rather than spiking, and its structure
reshapes the synapse's operating point rather than just its range.

**During DAY, continuously — the astrosynapse clears, gates, and fuels.** It produces energy at
its cell body (glycolysis from glucose, the system's energy root), then allocates lactate across
its astrosynapses weighted by each one's clearance demand. At each astrosynapse it clears
spillover glutamate (EAAT) and supplies tonic D-serine; when spillover is high it adds a
demand-driven D-serine pulse, brakes nothing of the presynapse directly (the presynaptic brake
is PRE reading its own cleft), deposits its calcium trace, and accumulates a dopamine-gated tag.
A D-serine pulse cut short by low budget while demand was high is endurance evidence; one cut
short by precursor/material exhaustion is a material limit, not endurance. Excess overflow
triggers the protective shockwave lockdown.

**During NIGHT — the astrosynapse's ceilings are rewritten.** NIGHT raises **structure**
(perisynaptic wrap, EAAT density, tonic D-serine) where a validated tag accumulated and **budget
capacity** where budget-limited synthesis recurred; astro_structure is self-reinforcing in both
directions, so it amplifies whatever trajectory the synapse is already on.

```
// PARAMETERS  K_Dserine · Ds_max · Ds_frac · Ds_cost · EAAT_cost · lactate_cost · spillover · overload
// INTERFACE
//   EMIT      astro_lactate[i] → pre/post/dend budgets ; astro_Dserine[i] → POST (gate)
//   RECEIVE   (signals) glutamate ← PRE (clearance + spillover) ; dopamine
//   READ      glutamate ; dopamine
//   OWN       astro_structure{perisynaptic_distance⁻¹, EAAT, Dserine_tonic, ECM} ; astro_budget_ceiling
//   SUPPLY    glucose (ROOT) ; astro_material, astro_energy ← cell body (NIGHT)
//   NOTE      ASTRO endurance fires on BUDGET-limited synthesis (got<want via low budget);
//             material/precursor-limited synthesis is a material limit, not endurance. Own-state proxy.
//   EMERGENCY emits shockwave_lockdown on overload

// RING × CONTEXT:  CONTINUOUS — no spike, so ACTION (clear/gate), EVALUATION (tag climb),
//   and PREPARATION (allocate/refill/settle) all run each step in the graded flow. The ring
//   turns continuously rather than being delimited by discrete events.

DAY | CONTINUOUS:                                          // per astrosynapse i
    // PREP: root production, demand weights, lactate allocation (ready the territory)
    astro_central_budget += glycolysis(glucose)·Δt
    for each i: demand[i] = clearance_load[i] × astro_structure[i].delivery_eff
    for each i: astro_territory_demand[i] += demand[i]·Δt   // territory-level aggregator (by DAY)
    factor = min(1, astro_central_budget / (Σ demand·lactate_cost + ε))
    for each i:
        astro_lactate[i] = demand[i] × factor;  astro_central_budget -= astro_lactate[i]·lactate_cost
    // ACTION: clear glutamate, supply tonic D-serine, gate on demand (the defining act)
    glutamate[i] -= astro_structure[i].EAAT × glutamate[i]·Δt;  astro_central_budget -= clearance·EAAT_cost
    astro_Dserine[i] += astro_structure[i].Dserine_tonic·Δt
    if glutamate[i] > spillover:
        astro_fast_trace[i] += mGluR_Ca();  astro_fast_trace[i] *= decay(s)     // deposit fast trace
        want = sat(astro_fast_trace[i], K_Dserine) × Ds_max
        got  = min(want, astro_central_budget × Ds_frac)
        astro_Dserine[i] += got;  astro_central_budget -= got·Ds_cost           // D-serine pulse → POST gate
        if got < want and astro_central_budget low and astro_fast_trace[i] > traj_thr:
            astro_endurance_need[i] += (want - got)         // FUEL-limited synthesis → endurance
        // EVAL: strength climb → token for NIGHT
        if astro_fast_trace[i] > elig: astro_possible_tag[i] += astro_fast_trace[i]
        if dopamine > dop_thr and astro_possible_tag[i] > tag_thr:
            astro_tag[i] += dopamine × astro_possible_tag[i]
    // DECAY (settle)
    //   MEDIUM (s–min)
    astro_possible_tag[i] *= decay(s);  astro_endurance_need[i] *= decay(min)
    //   SLOW   (hr)
    astro_tag[i] *= decay(hr)
    // EMERGENCY
    if astro_fast_trace[i] > overload: emit(shockwave_lockdown)

NIGHT · NON_REM_1 = PREPARATION | produce + distribute + prime:   // ROOT: energy production + priming
    // PRODUCTION (root): glycolysis + ECM synthesis this cycle, capped by glucose
    astro_central_energy   += overnight_glycolysis(glucose)·Δt_cycle    // energy — NOT recoverable
    astro_central_material += astro_cellbody_synth()·Δt_cycle           // material — recoverable
    night_energy_spent     += overnight_glycolysis(glucose)·Δt_cycle
    // distribute this cycle's batch across the territory, tag-weighted
    W = Σ astro_tag[i] over astro_tag[i] > tag_expiry
    for each i with astro_tag[i] > tag_expiry:
        w = astro_tag[i]/W
        astro_energy[i] += astro_central_energy·w;  astro_material[i] += astro_central_material·w
        astro_spont_thr[i] = spont_thr_base − thr_gain × astro_tag[i]   // prime own responsiveness from own tag
    astro_central_material += astro_ceiling_shrinkage·recycle           // recycle

NIGHT · REM = EVALUATION | respond to re-evoked glutamate, MEASURE participation (NO dopamine):
    for each astrosynapse i:
        // when its synapse's pattern re-evokes, spillover glutamate arrives → mGluR Ca response (a PROBE)
        if arrived_glutamate_replay[i]:
            astro_fast_trace[i] += mGluR_Ca()
        astro_participation[i] = level(astro_fast_trace[i])            // high/medium/low = centrality
        astro_fast_trace[i] *= decay(s)

NIGHT · NON_REM_2 = ACTION | change the structure (per astrosynapse):   // the night's defining deed
    for each astrosynapse i:
        astro_structure[i] -= decay_rate·Δt_cycle;  astro_structure[i] += min(astro_maint[i], maint_cost)  // lowering
        if astro_tag[i] > tag_expiry and astro_participation[i] ≥ MEDIUM:
            Δ = min(slot_batch, astro_material[i], astro_energy[i]·f_cap, astro_tag[i]) × astro_participation[i]
            astro_structure[i] += Δ                        // self-reinforcing both directions
            astro_material[i] -= Δ;  astro_energy[i] -= Δ·assembly_cost;  astro_tag[i] -= Δ
        if astro_endurance_need[i] > endur_thr:
            Δ' = min(cap_batch, astro_material[i]·f_cap, astro_energy[i]·f_cap)
            astro_budget_ceiling[i] += Δ';  astro_material[i] -= Δ'
            astro_energy[i] -= Δ'·biogenesis_cost;  astro_endurance_need[i] -= Δ'
        else:
            astro_budget_ceiling[i] -= capacity_decay_rate·Δt_cycle;  astro_budget_ceiling[i] += min(astro_cap_maint[i], cap_cost)
        astro_endurance_need[i] *= decay(slow)
    emit(astro_fatigue, astro_demand → upward)
```

---

## Special — Shockwave Lockdown

```
DAY or NIGHT | OVERLOAD:
    Vm = HYPERPOLARIZED;  AMPA_surface = mass_internalize() → post reserve
    axon_fast_trace += overdrive();  astro_central_budget -= emergency_cost
```

---
---
> NIGHT-BLOCK UNIFORMITY. ALL SIX local components now run the NIGHT ring
> (NON_REM_1 = PREPARATION · REM = EVALUATION · NON_REM_2 = ACTION), each adapted to its role:
> (a) NON_REM_1 imports/produces supply, primes its OWN threshold from its OWN standing tag,
> applies the descended constraint to itself, recycles, and — for intermediate nodes AXON/DEND —
> ships downstream so the pattern's links are fed; (b) REM releases/fires/responds as a PROBE and
> reads its own fast_trace as participation (level: high/medium/low), NO dopamine — AXON/DEND also
> RELAY the arrived replay_AP onward IF primed (this carries the pattern SOMA→AXON→PRE and
> SOMA→DEND→POST); (c) NON_REM_2 lowers structure homeostatically, then rebuilds where the tag still
> stands AND participation ≥ medium, consuming the tag. Roots (SOMA material, ASTROSYNAPSE energy)
> additionally PRODUCE each cycle and track night_energy_spent. The replay pattern propagates entirely
> through the DAY PATHWAYS, self-igniting, carrying only where every link is primed.

---
---
# CELL ACTORS — NEURON and ASTROCYTE
Two structurally identical peers. Each integrates its constituents' EMITTED activity by its DAY
(never reading their interiors), detects when its aggregate has gone quiet, and BROADCASTS the
restructuring window + renormalization/reallocation by its NIGHT. Each component then restructures
ITSELF in response. The cell actor's own DAY/NIGHT follows the same transition rule, on its own
aggregate activity.

## NEURON

The neuron is the whole-cell actor over soma, pre, post, dend, axon. It cannot fire or release —
it integrates what its components emit and grants them the restructuring window none of them can
grant itself. The soma is one of its constituents, a peer of the bouton; the neuron is not the soma.

```
// PARAMETERS  neuron_weight_ceiling · downscale_factor · rest_thr
// INTERFACE
//   EMIT      rest_permission, renorm_signal, occupancy_downscale → own components (broadcast)
//             neuron_fatigue → HYPOTHALAMUS
//   RECEIVE   (signals) component activity emissions (summed) ; sleep_pressure ← HYPOTHALAMUS
//             replay_reweight ← assembly/network (external)
//   OWN       neuron_activity · neuron_total_weight  (aggregates aggregated from emissions)
//   NOTE      never reads a component interior; sums emitted activity, broadcasts signals only.

DAY | active:                                              // (own_activity high → integrate only)
    // TRACE     integrate the cell's emitted activity + committed weight (aggregators)
    neuron_activity     += Σ component emitted_activity·Δt
    neuron_total_weight  = Σ component emitted_structure        // from emissions, not interiors
    // EMIT      fatigue upward (metabolic debt of the whole cell)
    neuron_fatigue = f(neuron_activity, unspent demand)
    // (no restructuring permission while the cell is active — components are busy)

NIGHT | cycle:                                             // (own_activity low AND sleep_pressure high)
    // the neuron acts ONLY by signalling; components prime/measure/rebuild themselves. Each
    // component's cycle is NON_REM_1→REM→NON_REM_2; the neuron just supplies the constraint.
    occupancy_downscale = downscale_factor                     // → components reset own occupancy (in NON_REM_1)
    if neuron_total_weight > neuron_weight_ceiling:
        renorm_signal = neuron_weight_ceiling / neuron_total_weight   // → components scale own structure
    rest_permission = TRUE                                      // → components may restructure this cycle
    // RECOVER   reclaim material returned by components' renormalization (arrives as recycled pool)
    // DECAY     neuron_activity relaxes as the cell stays quiet

CODA | on waking (sleep_pressure < wake_thr):
    neuron_activity = 0;  neuron_total_weight = recomputed from surviving emissions
```

## ASTROCYTE

The astrocyte is the territory actor over its astrosynapses — the exact parallel of the neuron.
It integrates its astrosynapses' emitted demand/load, and reallocates its produced energy and
material across the territory. The astrosynapse is one of its constituents; the astrocyte is not
the astrosynapse.

```
// PARAMETERS  (territory reallocation) · rest_thr
// INTERFACE
//   EMIT      astro_alloc[·] (reallocation), rest_permission → own astrosynapses (broadcast)
//             astro_fatigue → HYPOTHALAMUS ; produced energy+material → territory (roots)
//   RECEIVE   (signals) astrosynapse demand emissions (summed) ; sleep_pressure ; replay_reweight
//   OWN       astro_territory_demand[·]  (aggregated from emissions) ; astro_central_{energy,material}
//   NOTE      ROOT of synaptic energy + ECM material; integrate-and-broadcast like the neuron.

DAY | active:
    // TRACE     integrate territory-wide emitted demand (aggregator)
    for each astrosynapse i: astro_territory_demand[i] += emitted_demand[i]·Δt
    // BEHAVE    DAY metabolic support already runs per-astrosynapse (lactate allocation, see ASTROSYNAPSE)
    // EMIT      fatigue upward
    astro_fatigue = f(territory load, unmet demand)

NIGHT | cycle:                                             // (territory quiet AND sleep_pressure high)
    // RECEIVE = PRODUCTION (root): this cycle's energy + ECM batch, capped by glucose
    astro_central_energy   += overnight_glycolysis(glucose)·Δt_cycle     // NOT recoverable
    astro_central_material += astro_cellbody_synth()·Δt_cycle            // recoverable
    night_energy_spent     += overnight_glycolysis(glucose)·Δt_cycle
    // ADJUST    reallocation weights across the territory (demand × replay)
    for each i: astro_alloc[i] = (astro_territory_demand[i] × replay_reweight[i])
                                 / Σ(astro_territory_demand × replay_reweight)
    // EMIT (broadcast)  distribute this cycle's batch + grant restructuring window
    for each i:
        astro_energy[i]   += astro_central_energy·astro_alloc[i]
        astro_material[i] += astro_central_material·astro_alloc[i]
    rest_permission[i] = TRUE                                  // → each astrosynapse commits itself
    // RECOVER   reclaim material from decayed astrosynapse ceilings (returned to central pool)
    astro_central_material += astro_ceiling_shrinkage·recycle

CODA | on waking:
    astro_territory_demand[·] = 0
```

## HYPOTHALAMUS

The system actor. Unlike every other actor it has NO night: it runs CONTINUOUS, always
integrating fatigue from all components and emitting the single sleep-pressure signal that opens
everyone else's restructuring window. It is the clock that never sleeps — if it stopped, nothing
would track fatigue and the system could never transition.

```
// PARAMETERS  fatigue_gain · pressure_decay · discharge_gain
// INTERFACE
//   EMIT      sleep_pressure → ALL actors (broadcast; the day/night signal)
//   RECEIVE   (signals) fatigue from all components + cell actors (summed)
//             discharge signal (restructuring done → fatigue falling)
//   OWN       sleep_pressure
//   NOTE      single fatigue channel up, single sleep_pressure channel down. No DAY/NIGHT of its own.

CONTINUOUS:                                                // spans every other actor's day and night
    // RECEIVE   integrate all incoming fatigue (rising with activity, falling with consolidation)
    total_fatigue = Σ component_fatigue + neuron_fatigue + astro_fatigue
    // TRACE     accumulate sleep pressure from fatigue; discharge as restructuring proceeds
    sleep_pressure += fatigue_gain × total_fatigue·Δt
    sleep_pressure -= discharge_gain × consolidation_progress·Δt
    sleep_pressure *= decay(pressure_decay)
    // EMIT      broadcast the current level — each actor reads it and sets its own DAY/NIGHT
    broadcast(sleep_pressure)
    // (rising pressure tips quiet components into NIGHT; falling pressure wakes them — emergently)
```

How it runs without a driver. There is no loop that orchestrates the actors. The hypothalamus
continuously emits sleep-pressure; each component and cell actor continuously reads it and its own
activity and sets its own DAY/NIGHT per the transition rule. As components quiet and cross into
NIGHT they restructure, which discharges fatigue, which lowers pressure, which eventually wakes
them. The "loop of NIGHT cycles" is simply what happens while a component remains in its NIGHT
state — it runs its `NIGHT | cycle` block repeatedly until its transition rule flips it back to
DAY. Termination (waking) is emergent from the fatigue loop, not a `break`: a rested system
discharges its fatigue and wakes; an overloaded one wakes with tags unspent (they carry forward).

---

## One-view summary

```
THE THREE-PHASE RING · EIGHT ACTORS · ONE FATIGUE LOOP
  ACTION (lateral, deposits fast trace) → EVALUATION (local, climbs to tag) → PREPARATION (vertical, readies next)
  action is always LOCAL; evaluation & preparation may be local or CONTEXTUAL (a neighbor supplies them)
  CONTEXT licenses PHASE: AP→action · NOT_AP→fast eval+prep · NOT_SPIKE_TRAIN(⊂NOT_AP)→slow eval+prep
  phase edges are event/decay-timed, not clocked; RECOVER folded into PREPARATION (ready ≠ restore)

ACTORS local: soma·pre·post·dend·axon·astrosynapse   cell: neuron·astrocyte   system: hypothalamus
       same ring; higher actors INTEGRATE constituents' emissions and BROADCAST — never reach in

DAY    (per-component state: own_activity high) ring turned OUTWARD against the world
       fast_trace + dopamine → tag (strength) ; FUEL shortfall + interrupted success → endurance_need
       currency: information ; token minted by evaluation: the TAG (for NIGHT) ; emit fatigue upward
NIGHT  (per-component state: own_activity low AND sleep_pressure high) ring turned INWARD against the economy
       ACTION=coherence check · EVALUATION=draw & commit (only if coherent) · PREPARATION=make room
       currency: resource ; token minted by evaluation: STRUCTURE (for next DAY) ; deferral if not coherent
       what persists must EARN it: occupancy resets, only CEILINGS carry; unspent tags carry forward
LOOP   no driver/scheduler. HYPOTHALAMUS runs CONTINUOUS: integrates fatigue → emits sleep_pressure.
       activity→fatigue→pressure→quiet grants restructuring→discharge→pressure falls→wake. DAY/NIGHT
       are two turnings of one ring per component (local sleep), stitched by evaluation's tokens.
RULE   no actor authorizes its own restructuring — each is PUT IN POSITION by the actor above
       (holds an aggregate it can't see, opens a window it can't open). Acts locally, consolidates
       hierarchically. Material recycles; ENERGY does not (the arrow of time).
FLOWS  every flow has a timescale; shipment is transit-delayed (distal fills over cycles)
LOCAL  only own state + arrived signals; ACTION/EMIT are the crossings; nothing is a pure sink
```