experiment: E7
kind: genotype_lineage
seed: 20260705
n_replicates: 20

# (The advantage of sex — the dynamic mechanism behind E8): a single population adapts from all-wrong
# toward a multi-locus optimum under selection + drift + mutation. Beneficial alleles arise in
# different sub-lineages; recombination reassorts them into one genotype, while an asexual lineage
# suffers clonal interference (the alleles compete and cannot combine). Expect the SEXUAL lineage
# (recomb_rate=1) to climb toward the optimum faster than the ASEXUAL one (recomb_rate=0) — the
# classical advantage of sex, and the reason a lone model lineage cannot do what a recombining
# society can. Honest scope: a SPEED advantage, not a dramatic permanent gap (the single-population
# ratchet is subtle); E8 carries the headline. Falsifier: sexual adapts no faster than asexual.

genotype:
  L: 12
  n: 150           # population/resample size (drift strength)
  mu: 0.02         # per-locus mutation (flip) rate
  base: 1.3        # multiplicative selection: fitness weight = base^(#correct loci)
  recomb_rate: 0.0 # overwritten per arm by the sweep
  init: wrong      # start all-wrong (load L); adapt upward

generations: 120

sweep:
  - param: genotype.recomb_rate
    values: [0.0, 1.0]     # asexual vs sexual

output: {dir: results/sexual_vs_asexual_lineage}