Manuscript revision and pending experiment work, snapshot before restructuring

Clarity pass over the main text (36-item audit), Discussion rewrite and cut,
acknowledgements, Souly et al. as ref 62, lettered SI panels, model section
moved under Results; plus the untracked curriculum/society/compose/smol
configs, runners, figures, stats and tests that the SI already cites.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Y64o8FKP7rCuXzC48pxpMm

configs/llm/society_v2_s3.yaml

@@ -0,0 +1,29 @@
+# v2 society campaign, seed 3 (prereg tasks/prereg-llm-society-v2.md §3). The PBS array
+# (hpc/llm_society_v2.pbs) derives one config per (seed, arm) from this template; running it directly
+# runs all four arms sequentially (the local-GPU hedge).
+#
+# CALIBRATION-DEPENDENT FIELDS — set after gates C1/C2 pass, before submission:
+#   families   : the 9 selected by stage A pass 2 (C1, gate 0.41) — SET
+#   k_inherit / epochs / conf_gate : from stage B (C2 + C2b), 2026-09-07 — SET
+experiment: llm_society_v2
+kind: llm_society_v2
+base_model: Qwen/Qwen2.5-0.5B-Instruct
+seed: 3
+families: [strings, setops, numtheory, mixedtoken, digits, alphabet, prime, wordlen, roman]
+agents: 9
+generations: 12
+arms: [full, no_grounding, no_sex, no_diversity]
+g: 0.85
+lam: 0.3
+max_mate_use: 2
+n_test: 27           # per family  -> 243 overall (SE 0.032)
+n_val: 13            # per family  -> 117 (selection signal)
+n_conf: 13           # per family, fresh each generation
+k_inherit: 300       # per family, fresh each generation  (C2b: k=300 is the main retention driver)
+epochs: 3            # child SFT epochs                     (C2b)
+conf_gate: 0.85      # confidence-gated inheritance, all arms (C2b mean retention 0.88; C3c: tight gate = 6-epoch retention at 3 epochs)
+spec_train: 1200
+spec_epochs: 3
+resume: true
+lora: {r: 16, alpha: 32}
+output: {dir: results/llm_society_v2/s3}