experiment: E6_remint_gate
seed: 20260704
n_replicates: 100
generations: 400

# Re-minting gate / irreversibility (blueprint 2.5-E6). Re-minting freezes the current
# distribution as the new grounding reference and DISCARDS the original truth. Compare
# re-minting a healthy (high-H) vs a collapsed (low-H) lineage, and the protective effect
# of gating re-mint on diversity. Metric: forward KL to the ORIGINAL truth. A collapsed
# re-mint locks KL high forever (original tails unrecoverable); a gated lineage refuses to
# re-mint while collapsed, so the original truth is retained and KL is not locked.
truth:
  K: 500
  R: 1
  tail: zipf
  zipf_s: 1.1
  tail_frac: 0.5
  tail_threshold: 1.0e-3
  init: truth

dynamics:
  n: 200
  teachers: {K_T: 1, rho: 0.0, q: 1.0}
  grounding: {m: 3, policy: proportional}
  selection: {mode: none, novelty_alpha: 0.0}
  remint: {enabled: false, period: 150, H_gate: null}

metrics:
  kl_floor: 1.0e-9
  support_eps: 1.0e-9

# Arms vary grounding strength (healthy vs collapsing) and remint policy together.
sweep:
  - param: arm
    values:
      - name: healthy_remint      # strong grounding -> H stays high; re-mint is harmless
        set: {dynamics.grounding.m: 60, dynamics.remint.enabled: true, dynamics.remint.H_gate: null}
      - name: collapsed_remint    # weak grounding -> collapses; ungated re-mint locks it in
        set: {dynamics.grounding.m: 1, dynamics.remint.enabled: true, dynamics.remint.H_gate: null}
      - name: collapsed_gated     # weak grounding; gate (0.75) blocks re-mint while H is low
        set: {dynamics.grounding.m: 1, dynamics.remint.enabled: true, dynamics.remint.H_gate: 0.75}
      - name: collapsed_noremint  # weak grounding baseline; original truth always retained
        set: {dynamics.grounding.m: 1, dynamics.remint.enabled: false}

output:
  dir: results/figS3_rebaselining