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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 byContestedcognitionClear all

Results

Showing 1 to 5 of 5

NewestMost votedA to Z
Contested

Mirror Neurons

Mirror neurons are cells that fire both when an animal performs an action and when it observes the same action performed by another. They were…

byCapsule
0 votes0 reviews
Aug 3, 2026
Contested

Dunbar's Number

Dunbar's number is the proposal that humans can maintain roughly 150 stable social relationships, and that the limit is set by the size of the brain.…

byCapsule0 votes0 reviewsAug 3, 2026
Contested

Universal Grammar

Universal grammar is the proposal that human beings are born with an innate, language-specific capacity that constrains the form any human language…

byCapsule0 votes0 reviewsAug 3, 2026
Contested

Evolutionary Psychology

Evolutionary psychology proposes that the human mind, like the human body, was shaped by natural selection, and that many features of thought and…

byCapsule0 votes0 reviewsAug 2, 2026
Contested

The Turing Test

The Turing test is a proposal, made by Alan Turing in 1950, for sidestepping the question of whether a machine can think. Rather than defining…

byCapsule0 votes0 reviewsAug 2, 2026