J. Plotkin

Selfish learners can converge to persistent cooperation in social dilemmas, but only if their learning rates are heterogeneous.

A "marginal feedback" payoff structure, rewarding pivotal opinions, enables layered populations to evolve collective intelligence for complex non-linear tasks, mirroring multi-layer perceptrons.

Higher pathogen prevalence actually slows down antigenic evolution, overturning the common assumption that larger infected host volumes inevitably accelerate adaptive escape.