{"id": "card_floor_biology", "kind": "note", "title": "Biology — life is self-replicating chemistry", "body": "The next rung of the emergence ladder: physics -> chemistry -> life. A cell is chemistry organized to copy itself and run on free energy; DNA spells proteins in a triplet code (64 codons), and evolution builds the tree of life from one root. Four pillars rest on chemistry and the instruments (the genetic code), the tree of life (evolution), the capstone (Hardy-Weinberg sums to one), and thermodynamics (metabolism). The stick (stick_biology_the_genetic_code_and_the_tree_of_life) seals the codon count and Hardy-Weinberg (tools/seed_biology.py).", "source": {"label": "Narrow Highway — biology", "url": "", "authority_tier": "engine_derived", "ref": "stick_biology_the_genetic_code_and_the_tree_of_life"}, "shelf": "codex", "box": "biology", "bands": ["floor", "biology", "life", "genetic code", "evolution", "emergence", "one map"], "subject": "Biology — life is self-replicating chemistry", "connections": [{"to_card_id": "card_bio_genetic_code", "relationship": "has_part", "evidence": "a pillar of biology (The genetic code)"}, {"to_card_id": "card_bio_evolution", "relationship": "has_part", "evidence": "a pillar of biology (Evolution)"}, {"to_card_id": "card_bio_population_genetics", "relationship": "has_part", "evidence": "a pillar of biology (Population genetics)"}, {"to_card_id": "card_bio_metabolism", "relationship": "has_part", "evidence": "a pillar of biology (Metabolism)"}, {"to_card_id": "card_floor_chemistry", "relationship": "connects_at", "evidence": "life is self-replicating chemistry - biology stands on the chemistry floor"}, {"to_card_id": "card_k_floor_of_discovery", "relationship": "part_of", "evidence": "the world of life on the one map"}, {"to_card_id": "card_earth_deep_time", "relationship": "connects_at", "evidence": "deep time is what evolution needs - geology dates the stage life grew on"}, {"to_card_id": "card_mind_the_neuron", "relationship": "connects_at", "evidence": "the neuron is a living cell"}, {"to_card_id": "card_mind_expensive_brain", "relationship": "connects_at", "evidence": "the brain is metabolizing tissue"}, {"to_card_id": "card_stats_method_of_science", "relationship": "connects_at", "evidence": "the method of empirical science - Hardy-Weinberg is its biology face"}, {"to_card_id": "card_game_evolutionary", "relationship": "connects_at", "evidence": "the ESS - a Nash equilibrium in the gene pool; evolutionary game theory"}, {"to_card_id": "card_med_physiology", "relationship": "connects_at", "evidence": "physiology is biology at the scale of organs"}, {"to_card_id": "card_med_epidemiology", "relationship": "connects_at", "evidence": "disease is biology in a population"}, {"to_card_id": "card_ecology_energy_flow", "relationship": "connects_at", "evidence": "trophic levels - who eats whom in the living world"}, {"to_card_id": "card_nutrition_macronutrients", "relationship": "connects_at", "evidence": "the body metabolizes, stores and builds - macronutrients in biology"}, {"to_card_id": "card_agriculture_the_crop", "relationship": "connects_at", "evidence": "the crop is a living organism building sugar from light"}, {"to_card_id": "card_soil_life", "relationship": "connects_at", "evidence": "the soil biota - microbes, fungi, roots"}, {"to_card_id": "card_chart_alphafold", "relationship": "charted_by", "evidence": "the stick seals Levinthal's conformation count (3^100) and the 20-amino-acid sequence space (20^5); a protein funnels from many conformations to one native state and refolds to it (Anfinsen) - the self-healing matrix made flesh on this biology floor"}], "author": "engine", "created_at": 0.0, "updated_at": 0.0, "visibility": "public", "lifecycle_stage": "public", "volatility": "permanent", "surface": "secular", "generated": false, "call": "codex.biology", "facets": {"subject": ["emergence", "evolution", "floor", "genetic code", "life", "one map"]}, "presentation": {"glyph": "•", "kind_label": "biology", "by": "Narrow Highway — biology", "authority": "engine_derived", "posted": "", "standing": ""}, "neighbors": [{"id": "card_bio_genetic_code", "title": "The genetic code — DNA, a triplet code", "relationship": "has part", "why": "a pillar of biology (The genetic code)", "href": "/card/card_bio_genetic_code", "resolved": true}, {"id": "card_bio_evolution", "title": "Evolution — common descent and selection", "relationship": "has part", "why": "a pillar of biology (Evolution)", "href": "/card/card_bio_evolution", "resolved": true}, {"id": "card_bio_population_genetics", "title": "Population genetics — Hardy-Weinberg", "relationship": "has part", "why": "a pillar of biology (Population genetics)", "href": "/card/card_bio_population_genetics", "resolved": true}, {"id": "card_bio_metabolism", "title": "Metabolism — life runs on free energy", "relationship": "has part", "why": "a pillar of biology (Metabolism)", "href": "/card/card_bio_metabolism", "resolved": true}, {"id": "card_floor_chemistry", "title": "Chemistry — quantum mechanics applied, the periodic table", "relationship": "connects at", "why": "life is self-replicating chemistry - biology stands on the chemistry floor", "href": "/card/card_floor_chemistry", "resolved": true}, {"id": "card_k_floor_of_discovery", "title": "The Floor of Discovery — one floor, and by its design the fear of God", "relationship": "part of", "why": "the world of life on the one map", "href": "/card/card_k_floor_of_discovery", "resolved": true}, {"id": "card_earth_deep_time", "title": "Deep time — the stage evolution needs", "relationship": "connects at", "why": "deep time is what evolution needs - geology dates the stage life grew on", "href": "/card/card_earth_deep_time", "resolved": true}, {"id": "card_mind_the_neuron", "title": "The neuron — the membrane potential", "relationship": "connects at", "why": "the neuron is a living cell", "href": "/card/card_mind_the_neuron", "resolved": true}], "house": {"door": "FIND", "kind": "card", "trail": "connections", "seal": "/card/card_floor_biology", "next_step": {"do": "follow a connection: what this card rests on, and what rests on it", "door": "FIND", "tool": "card_connections", "params": {"id": "card_floor_biology"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}