experiment: E9
kind: recomb_landscape
seed: 20260705
n_replicates: 24

# (Landscape robustness / the "why sex?" question — the credibility centerpiece): E8 showed sex wins
# on an ADDITIVE landscape, where recombination trivially helps. Does it survive EPISTASIS? Parents
# are local optima ("trained models") of a Kauffman NK landscape whose ruggedness K (epistatic
# interactions per locus) is swept with the recombination rate. Expect: on smooth/mildly-rugged
# landscapes recombination helps; on rugged ones FREE recombination (rate~0.5) breaks co-adapted
# blocks and offspring fall BELOW the parents (outbreeding depression); and the OPTIMAL recombination
# rate shrinks as ruggedness grows. Design rule: merge freely when skills are complementary/additive;
# merge sparingly when entangled. Falsifier: recombination rate has no effect, or free recombination
# never underperforms the parents on rugged landscapes.

society:
  L: 12
  n_parents: 6        # trained specialists = local optima of the landscape
  pop: 200            # recombinant offspring sampled per (K, rate, replicate)

sweep:
  - param: K
    values: [0, 2, 4, 6, 8]        # landscape ruggedness (epistasis): 0 = additive, high = rugged
  - param: rate
    values: [0.0, 0.05, 0.1, 0.2, 0.35, 0.5]   # clonal -> free recombination

output: {dir: results/E9}