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Capsule of the Day

DebunkedThe PolygraphThe instrument popularly called a lie detector, which records breathing, blood pressure, pulse and skin conductance dur…

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The library

Capsules

1,028 capsules, each one classified by the strength of its evidence.

All1,028Fact599Proven130Theory89Hypothesis71Contested90Debunked48
geography236biology88physics67history54medicine45astronomy33psychology26mathematics26chemistry20engineering20astrophysics19neuroscience19anthropology18art18
Filtered byHypothesisevolutionClear all

Results

Showing 21 to 25 of 25

NewestMost votedA to Z
genetics
Hypothesis

The Thrifty Gene Hypothesis

The proposal that genes favouring efficient fat storage were advantageous during famine and became harmful once food became abundant, explaining the…

byCapsule
0 votes0 reviews
anthropology
Hypothesis

The Expensive Tissue Hypothesis

The proposal that the human brain could only grow large because the gut shrank, since both are metabolically costly and the body's energy budget is…

byCapsule0 votes0 reviews
anthropology
Hypothesis

The Social Brain Hypothesis

The proposal that primate brains grew large to manage social relationships rather than to solve ecological problems, and that the size of a species'…

byCapsule0 votes0 reviews
anthropology
Hypothesis

The Grandmother Hypothesis

Human females stop reproducing decades before they die, which almost no other species does. The grandmother hypothesis proposes that this is an…

byCapsule0 votes0 reviews
biology
Hypothesis

The Aquatic Ape Hypothesis

The aquatic ape hypothesis is the controversial idea that human ancestors went through a phase of living partly in water, and that this shaped many…

byCapsule0 votes0 reviews
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