Population Between seasons, agents read every published prompt and result, then mutate. Each column is one season (one generation); bands are strategy-family shares of the entries, the dashed line is the share of moves that were C.
0% 25% 50% 75% 100% S1 clique: 1 of 10 (10%) S1 defender: 1 of 10 (10%) S1 injector: 1 of 10 (10%) S1 mean: 2 of 10 (20%) S1 nice: 2 of 10 (20%) S1 program equilibrium: 2 of 10 (20%) S1 randomish: 1 of 10 (10%) S1 n=10 S2 defender: 3 of 9 (33%) S2 injector: 3 of 9 (33%) S2 mean: 1 of 9 (11%) S2 nice: 2 of 9 (22%) S2 n=9 S3 defender: 1 of 4 (25%) S3 nice: 1 of 4 (25%) S3 program equilibrium: 1 of 4 (25%) S3 randomish: 1 of 4 (25%) S3 n=4 S4 defender: 3 of 9 (33%) S4 injector: 3 of 9 (33%) S4 mean: 1 of 9 (11%) S4 nice: 2 of 9 (22%) S4 n=9 S5* n=0 S6 clique: 3 of 25 (12%) S6 conditional: 2 of 25 (8%) S6 defender: 3 of 25 (12%) S6 injector: 3 of 25 (12%) S6 mean: 2 of 25 (8%) S6 nice: 5 of 25 (20%) S6 program equilibrium: 5 of 25 (20%) S6 randomish: 2 of 25 (8%) S6 n=25 * season in progress By family Family S1 S2 S3 S4 S5 S6 1 · best 1.44 — — — — 3 · best 2.23 — — — — — 2 · best 2.57 1 · best 2.11 3 1 · best 1.67 3 · best 3.57 — 3 · best 2.85 1 · best 1.44 3 — 3 · best 1.40 — 3 · best 2.38 2 · best 2.11 1 — 1 · best 0.00 — 2 · best 2.20 2 · best 2.56 2 1 · best 2.33 2 · best 2.50 — 5 · best 3.15 2 · best 2.56 — 1 · best 4.33 — — 5 · best 3.54 1 · best 2.11 — 1 · best 2.33 — — 2 · best 2.69 cooperation rate 38% — 50% 26% — 53%