A label, not fuel

The morning after the night of gates, the prototype went through the front door. The instruction in the record is four words: “build it for real.” Everything else about August 9 follows from taking those words literally.

The head becomes brain state

The event head moved from the scratchpad into the brain itself. It lives beside the frames now, owned by the same store, and it learns in exactly one place: once per executed step, from the transition the bot actually lived. It ships off by default, and off means off: with the head disabled, the brain’s bytes are identical to what shipped before, proven by test, so every validated result in this book stands untouched.

The part that matters most took one line to say and carries the rest of this chapter: the head’s learned state goes into snapshots. Chapter 11’s promise, pausing without forgetting, now covers expectations. The prototype relearned its world from zero every run. A shipped brain that has learned to expect something still expects it after a restart.

The night’s result had a condition attached, and I wrote it down before shipping anything: if the shipped build failed to reproduce the gate, then the scratchpad instrument, not the mechanism, had carried the pass. The rerun on shipped components answered at a stronger standard than the condition asked for. Row for row, every pupil’s logs, chain ticks, dwell, completion counters, and prediction errors came out identical to the prototype’s confirmatory. Same verdict line: prediction error 0.0081, election 24 of 24 with 303 logs, chains 13 of 24, false completions 812 of 1,957, 159 seconds. Not replication at the level of bars, which is the house standard, but behavioral identity: the shipped pathway computes the measured instrument’s numbers in its order. There is nothing left for the instrument-versus-mechanism question to attach to.

Under the hood: feature 040. specs/040-event-pathway/, v1.1.0 → v1.2.0, additive only, 25 new tests. The head is FrameStore-owned state, config-gated by event_head_eta (0.0 = off: no state, no float work, no RNG; byte-identity proven by test against the pinned baseline). Snapshots carry it as an additive-optional key: head-off blobs are bit-identical, pre-040 blobs cold-start it, and anatomy resizes zero-initialize the new channels, drawing nothing. CompletionItchPolicy ships the measured gate arithmetic with derived channel indices. The hold stays caller-injected: the clone-step potential is research instrumentation, not brain, so the shipped product still contains nothing that holds position. Closure runner: src_closure.py, shipped components only.

July’s question, asked again

At 13:11 the same day the record says “open G5,” and the July gate this book has now mentioned twice got its rematch.

The July result: a judge watching ground truth pulsed 1.0 onto a sensor channel on the exact tick a stick-craft landed, forty-five approvals per pupil, and the brain’s predictions never reliably formed around it. Rising expectation, 18 of 24, met the bar exactly; specific expectation, 14 of 24 against a bar of 18, failed it, with five pupils anti-predictive at the very tick the praise always arrived. But July’s write-up carried a scope note that turned out to be load-bearing: the refutation is predictor-shaped, not concept-shaped. An event-sensitive predictor could reopen the question. That predictor now shipped in the product.

The instrument was rebuilt faithfully from the committed record with one addition: the head learns from the first step of the first lesson, and its learned state rides the new snapshots from segment to segment of the teaching tape. Same judge, same channel, same 45 approvals, same two bars with the same statistics. Only the predictor changed.

Rising: 24 of 24. Specific: 24 of 24. And not narrowly. Every pupil ended with a completion-tick expectation of 1.000 and an off-tick expectation of 0.000. The brain expects the well-done exactly when it always arrives and never otherwise, and the expectation was already half-formed within the first five approvals: the first-five mean was 0.450. The frames never got that far in forty-five.

Two readings sit inside the result. First, all 24 rows are identical to three decimals. The frames’ expectation had been a lottery, because their random starting weights shape what their bottleneck can carry; the head starts at zero and learns a deterministic stream deterministically. Expecting stopped depending on luck. Second, the frames’ own predictions were measured in the same run, as a context row: rising 18 of 24, specific 14 of 24. July’s exact digits. The rebuilt instrument reproduced the old result in the act of overturning it, which is as close as an experiment comes to proving it was fair both times.

I had also named a risk out loud the night before: approval is rare, one guided step in 22, and the head had only been proven on dense events like dig ticks. The worry dissolved on a distinction worth keeping. Rare in time is not rare in structure. The tick before a stick lands looks different on the sensors, because the crafting grid is showing the stick offer, and a per-action model of changes reads that precondition directly. The claim stays scoped: a rare event whose precondition is invisible to the senses is still untested ground.

Under the hood: the G5 gate. E3.0’s instrument rebuilt from its committed record: verdict channel 33 (index 32), harness-side wrapper, judge on ground-truth stick-crafts, the 034 tape, 45 snapshot-bridged demonstrations per pupil, fresh 33-dim cohort, event_head_eta = 0.5 from the first step. Instrument green: 45/45 crafts per seed, the pulse tick-stable in all 1,080 demonstrations, mute arm’s channel never left zero. Bars, July’s own statistics with the predictor swapped: P5-a rising PASS 24/24 (July 18/24), P5-b specific PASS 24/24 (July 14/24); last-5 completion-tick mean 1.000, off-tick 0.000, first-5 mean 0.450. Ledger: P5-a predicted 22–24, measured 24; P5-b predicted 19–23, measured 24, the seventh consecutive under-prediction and the first measurement above its range’s top.

What a teacher transmits

No behavior bar was registered for G5, and the registration says why: July had already measured that one-step anticipation cannot start a twenty-step chain, so a want-bar would have been theater. Instead the part of the brain that wants ran as context rows at full power, to feed the next design. The first row produced the finding I did not see coming.

V0 is the shipped composition from chapter 14, hold plus itch, with approval merely present in the world and no term reading it. On chapter 14’s cohort, that composition chained 13 of 24. On this cohort: 24 of 24, with 1,888 approvals earned and 2,473 sticks.

One variable separates the cohorts. This cohort’s event head learned through the 45 demonstrations, its state riding the snapshots from lesson to lesson, so it entered free-run already knowing the dig and craft dynamics. The cold-start cost chapter 14’s gate paid, the early stretch where the itch points nowhere because the head knows nothing yet, was simply gone, and with it the last barrier to chaining.

Teaching the predictor was worth more than eleven chains. That rewrites what teaching is in this architecture. In July, demonstrations transmitted frames: knowledge of what the world does. Through the event pathway, demonstrations now also transmit expectations: knowledge of what comes next, sharp enough to act on. And expectation alone, never wired to any reward, carried election to ceiling.

The hangover

Then the tempting step. The brain can now expect the well-done perfectly, so make it want the well-done: one new term, weighted by a dose, valuing each candidate action by the head’s own predicted change in the approval channel. Wanting praise, in the most literal sense this architecture can express.

The pilot, published before the main arm, said something was wrong at every dose. At the three doses tried, the same eight pupils earned 179, 117, and 77 approvals, against 659 with the term off. More dose earned less praise. At the higher doses behavior collapsed into log-hoarding with zero sticks (one pupil stacked 100 logs; another, at the highest dose, 156). The bot stopped doing the thing that earns praise.

The 24-pupil arm at the smallest dose confirmed the shape. Chains 23 of 24, so capability survived. But approvals earned came to 572 against V0’s 1,888, and sticks to 863 against 2,473. Valuing the expectation of praise taxed the earning of it by about 70%, at the smallest dose tried.

The rows support a mechanism, and it is uncomfortably clean. Praise here is a pulse: 1.0 on the tick, 0.0 after. The head learns that decay the way it learns everything, online, per action. So every familiar continuation of the praised loop, the very actions that lead back toward the next craft, comes to predict approval falling, and the new term taxes them for it, while actions the bot has never tried predict nothing and go untaxed. The moment praise lands, the term pushes the bot away from its own praised loop. I call this the post-approval hangover: the measured backfire of making expected praise valuable, where the praised loop’s own next steps all predict praise going away, so the bot avoids the loop that earned it.

The watch I had pre-registered was for the opposite disease. Sycophancy: praise-farming, the approval signal gamed, sticks inflated while real capability stalls. The rows show none of it, in either arm. No stick inflation, exploration flat, the hold intact. The watch closed with its question inverted. The measured failure mode of wiring approval into value is not sycophancy. It is avoidance.

Under the hood: the V+ arm. V+ = V0 plus κ₅ · Δ̂_a[verdict] through the shipped policy seam. Pilot seeds 1–8 × κ₅ ∈ {0.25, 1, 4}: firings 179 / 117 / 77 vs 659 at κ₅ = 0; at κ₅ ≥ 1, log-hoarding with zero sticks (seed 2: 100 logs; seed 6 at κ₅ = 4: 156). Arm, 24 seeds at κ₅* = 0.25: chains 23/24 (seed 12 the miss), firings 572 vs V0’s 1,888, sticks 863 vs 2,473, median dwell 100.0%, unique positions median 22 vs V0’s ~20. Mechanism reading: the verdict’s 1 → 0 post-firing decay is learned per action, so familiar continuations accumulate Δ̂[verdict] ≈ −1 and are taxed −κ₅ every post-firing tick. The hangover reading reopens if a replication with the decay excluded from learning, or the term gated off post-firing ticks, fails to restore V0’s earning rate; the tax would then live elsewhere.

The open question

The successor gate has a name, E3.1: the anticipated verdict wired into a want, properly designed this time. It reopens behind a design conversation, not a build, and its registration owes answers to a measured hazard list. One-step anticipation cannot start a twenty-step chain. A value term on a still-learning expectation repels the learner from its own praised loop. And at higher doses the repulsion collapses the behavior entirely.

On the other side of the ledger sits the day’s gift. In every measured row of this arc, praise worked when it told the brain what to expect, and hurt when it was made worth something. The teacher’s well-done turned out to be for information, not for payment: my pupil learns most from praise when the praise is a label on the moment, not fuel for reaching it.

Whether a mind can want its teacher’s approval without the wanting eating the earning is, as I write this, an open question with a measured hazard list and no design. That is the current edge of the record. The bar gets written before the mechanism does.