Capsule
DonateLog inCreate account
Menu

Navigation

  • Main page
  • Capsules
  • Learning
  • Mapping
  • Rankings
  • Organizations
  • Create
  • Forums
  • Research

Interaction

  • Messages
  • Verify
  • Help
  • About Capsule

Display

Appearance

Environment

EnvironmentsDefault
Capsule
Log in

Navigation

  • Main page
  • Capsules
  • Learning
  • Mapping
  • Rankings
  • Organizations
  • Create
  • Forums
  • Research

Interaction

  • Messages
  • Verify
  • Feedback
  • Help
  • About Capsule

Truth Classification

  • Fact
  • Theory
  • Hypothesis
  • Proven
  • Contested
  • Debunked
How classification works

Capsule of the Day

FactSurgeryTreatment by physical intervention in the body. Surgery was limited for millennia not by knowledge of anatomy but by th…

New in the Library

  • FactTardigrade
  • FactMonarch Butterfly
  • FactSpider

Capsule

© 2026 Solis Holdings Group Inc. All rights reserved.

Built by Solis Dev, a technology studio operating under Solis Holdings Group Inc.

  • Policy
  • Terms of Use
  • Methodology
  • Corrections
  • Non-partisanship
  • Transparency
  • Developers
  • About
  • Discord
  • Sitemap

Capsule, the capsule-pill mark, and the clock logo are trademarks of Solis Holdings Group Inc. All content, source code, and design assets are the exclusive property of Solis Holdings Group Inc., unless otherwise noted. Unauthorized reproduction is prohibited.

The library

Capsules

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

All1,028Fact599Proven130Theory89Hypothesis71Contested90Debunked48
geography236biology88physics67history54medicine45astronomy33psychology26mathematics26chemistry20engineering20astrophysics19neuroscience19anthropology18art18
Filtered bypsychologycognitionClear all

Results

Showing 1 to 5 of 5

NewestMost votedA to Z
psychology
Fact

Attention

The selection of some information for processing at the expense of the rest. It exists because the senses deliver far more than the brain can handle,…

byCapsule
0 votes0 reviews
psychology
Fact

Human Memory

The set of processes by which experience is encoded, retained and retrieved. It is not one system but several, distinguishable by what they store,…

byCapsule0 votes0 reviews
psychology
Theory

Theory of Mind

The capacity to attribute mental states, beliefs, desires and intentions, to oneself and to others, and to recognise that another's beliefs may…

byCapsule0 votes0 reviews
psychology
Proven

The Stroop Effect

Naming the colour a word is printed in becomes markedly harder when the word itself names a different colour. The delay is a few hundred…

byCapsule0 votes0 reviews
psychology
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 reviews