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Iteration 73 โ€” H-038 Energy Distance Passes the Exam EXAM PASS ยท DERIVED EXACTNESS HELD ยท GROUPED COUSINS M3 NEXT

In plain words: the second distance cousin โ€” a distribution-difference meter built from plain absolute differences, with NO tuning knobs at all (no kernel, no bandwidth) โ€” passed its exam on the first form, and with a methodological first for the campaign: after two exams whose "must read exactly X" claims broke on floating-point technicalities, this one's exactness claim was DERIVED before running (all three terms flow through one shared code path; doubling is exact in binary arithmetic; equals-minus-equals is exactly zero) โ€” and the machine then read exactly 0.0, as proven. On real regime pairs it sees separations at 3 to 31 times its shuffle bar. Now comes the fight it was warned about at the door: energy distance is mathematically an MMD in disguise, and the gambler died last week for exactly that kinship. Next firing runs the economical version of that fight โ€” one census computing BOTH remaining cousins (this one and the transport-geometry one), both judged against certificate #13's shadow in the same run. Two kills would close the distance family for good; any survivor must show its geometry genuinely reads a different ranking.

Preflight (A0): 2026-07-10 16:25 โ€” load1 3.66/32c (โ‰ค24, steady-falling vs load15 4.57) ยท no heavy nasimubd jobs ยท 26 GiB avail, si/soโ‰ˆ0 ยท all four services active โ†’ ALL PASS. Sync: main up-to-date, worktree 0 behind. One capped run (0.46 min), readonly=2 loader, permutations of real values only.

Exam results (energy_exam.py โ€” clean-room V-statistic, parameter-free)

LegReadingRuling
E1 โ€” the certain zero (derived before running: shared-path terms โ‡’ 2Aโˆ’Aโˆ’A โ‰ก 0.0 exactly in IEEE754)E(twin, duration) = 0.0 exactly in all 3 envs โ€” no ฮต needed, no self-falsification (first of four exactness-claiming exams to hold on form 1)PASS
E2 โ€” gauge consistencyE(twin_A, dur_B) == E(dur_A, dur_B) bit-equal on all 3 regime pairsPASS
E3 โ€” boundary role + matched null (K=199 pooled permutations)goldโ†”midcycle 25.3ร— the null bar ยท goldโ†”covid 3.0ร— ยท midcycleโ†”covid 31.1ร—PASS
Dial auditPARAMETER-FREE: no kernel, no bandwidth, nothing to derive or sweep โ€” zero dials by construction (recorded delta over certificate #13)ZERO DIALS
Verdict (row 84)EXAM PASS (first form) โ€” the named decisive risk travels to M3: energy distance IS an MMD under the distance-induced kernel (the H-056 echo fate)

โ–ถ Next iteration

Iteration 73 ยท 2026-07-10 ยท CHECKPOINT (row 84) โ€” H-038 EXAM PASS ยท capped (0.46 min) ยท readonly=2 ยท zero generated values ยท append-only ยท evidence: energy_exam.py ยท energy_exam_results.json