ACL-TTL overhead: full 36-cell campaign complete (6 seeds), FABRIC-2.md

Section T -- +0.0603%, final accepted figure

Extended Section S's 3-seed/9-pair campaign to 6 seeds/18 pairs (36
cells) per Captain Bob's request for a fuller campaign before moving
on. All 36 cells: 480/480 rows, 0 errors, 17,280/17,280 rows total.

Every one of 18 disabled cells reads exactly 261063 ticks -- CV=0.000%
across all 3 architectures and 6 seeds, zero exceptions. Every enabled
cell's tick count is fully determined by seed alone, identical across
all 3 architectures, zero exceptions. Pooled overhead across all 18
pairs: +0.0603% (mean +0.0603%, stdev 0.0008%, range +0.0598%-
+0.0617%) -- statistically indistinguishable from Section S's 9-pair
figure, now confirmed over double the data with 3 entirely new seeds.

This closes the ACL-TTL overhead measurement line of investigation
(Sections P, Q, R, S, T). +0.0603% is the final accepted figure.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

experiments/bare_metal/runs/acl-ttl-overhead-20260821-ticks/ticks.csv

@@ -33,3 +33,5 @@ order,arch,seed,acl,before_tick,after_tick,delta_ticks,rows,errors
 32,aarch64,24680,enabled,80,261299,261219,480,0
 33,riscv64,99999,disabled,79,261142,261063,480,0
 34,aarch64,11111,disabled,79,261142,261063,480,0
+35,riscv64,11111,disabled,79,261142,261063,480,0
+36,amd64,11111,disabled,79,261142,261063,480,0