{"id": "card_game_evolutionary", "kind": "reference", "title": "Evolutionary games — fitness is the payoff", "body": "Replace rational choice with reproduction and the same math governs biology: an evolutionarily stable strategy is a Nash equilibrium no mutant can invade (hawk-dove, the evolution of cooperation). Rests on biology.", "source": {"label": "Narrow Highway — game theory", "url": "", "authority_tier": "engine_derived"}, "shelf": "codex", "box": "game_theory", "bands": ["game theory", "pillar", "evolutionary", "one map"], "subject": "Evolutionary games — fitness is the payoff", "connections": [{"to_card_id": "card_floor_game_theory", "relationship": "part_of", "evidence": "a pillar of game theory (Evolutionary games)"}, {"to_card_id": "card_floor_biology", "relationship": "connects_at", "evidence": "the ESS - a Nash equilibrium in the gene pool; evolutionary game theory"}], "author": "engine", "created_at": 0.0, "updated_at": 0.0, "visibility": "public", "lifecycle_stage": "public", "volatility": "permanent", "surface": "secular", "generated": false, "call": "codex.game.theory", "facets": {"subject": ["evolutionary", "game theory", "one map", "pillar"]}, "presentation": {"glyph": "•", "kind_label": "game theory", "by": "Narrow Highway — game theory", "authority": "engine_derived", "posted": "", "standing": ""}, "neighbors": [{"id": "card_floor_game_theory", "title": "Game theory — equilibrium, dilemmas, and strategy", "relationship": "part of", "why": "a pillar of game theory (Evolutionary games)", "href": "/card/card_floor_game_theory", "resolved": true}, {"id": "card_floor_biology", "title": "Biology — life is self-replicating chemistry", "relationship": "connects at", "why": "the ESS - a Nash equilibrium in the gene pool; evolutionary game theory", "href": "/card/card_floor_biology", "resolved": true}], "house": {"door": "FIND", "kind": "card", "trail": "connections", "seal": "/card/card_game_evolutionary", "next_step": {"do": "follow a connection: what this card rests on, and what rests on it", "door": "FIND", "tool": "card_connections", "params": {"id": "card_game_evolutionary"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}