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Scientific theories

Name a scientific theory. Hopdown accepts 604 answers here. Common answers keep your bunny near the surface; rare ones dig deeper. Any well-known scientific, mathematical or social-science theory, hypothesis or model.

Most common answers

• Theory of EvolutionExtremely common
• General RelativityExtremely common
• Special RelativityExtremely common
• Theory of RelativityExtremely common
• Plate TectonicsExtremely common
• Germ TheoryExtremely common
• Big Bang TheoryExtremely common
• Cell TheoryCommon
• Atomic TheoryUncommon
• Pilot Wave TheoryUncommon
• Bohmian MechanicsUncommon
• Hidden Variable TheoryUncommon
• Quantum ChromodynamicsUncommon
• Quantum ElectrodynamicsUncommon
• Quantum TheoryUncommon

Rare answers

• Quantum Information TheoryRare
• Ginzburg-Landau TheoryRare
• Complexity TheoryRare
• Keynesian EconomicsRare
• Endogenous Growth TheoryRare
• RealismRare
• Gestalt TheoryRare
• Signal Detection TheoryVery rare
• Cognitive Appraisal TheoryVery rare
• Two-Step Flow TheoryVery rare
• Life Course TheoryVery rare
• Cognitive TheoryVery rare
• Inclusive FitnessVery rare
• Unified Neutral TheoryVery rare
• Clay HypothesisVery rare

Deep cuts

The answers almost nobody gives.

• Fission TheoryDeep cut
• Encounter HypothesisDeep cut
• Stellar NucleosynthesisDeep cut
• Wave-Particle DualityDeep cut
• Knot TheoryDeep cut
• Corpuscular TheoryDeep cut
• Security DilemmaDeep cut
• Ptolemaic ModelDeep cut
• Zoo HypothesisDeep cut
• StructuralismDeep cut

Plus 564 more answers you'll have to find yourself.