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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 bycomputer-scienceClear all

Results

Showing 1 to 10 of 10

NewestMost votedA to Z
Fact

Computer Networks

Systems connecting computers so that they can exchange data. The design decisions taken in the 1960s and 1970s determined the shape of the internet,…

byCapsule
0 votes0 reviews
Aug 5, 2026
Fact

Operating Systems

The software that manages a computer's hardware and provides services to every other program. It exists because writing each program to control the…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Databases

Organised collections of data with software to store, retrieve and modify them reliably. Almost every application of any size is a user interface…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

Programming Languages

Formal languages for specifying computations that a machine can carry out. They exist because instructing a computer in the numeric codes it actually…

byCapsule0 votes0 reviewsAug 5, 2026
Proven

Error-Correcting Codes

Adding structured redundancy to a message so that errors introduced in storage or transmission can be detected and repaired without asking for a…

byCapsule0 votes0 reviewsAug 3, 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
Proven· Mathematical Proof

Public-Key Cryptography

Public-key cryptography is the method that allows two parties who have never met, and who are communicating over a channel anyone can read, to…

byCapsule0 votes0 reviewsAug 2, 2026
Contested

P versus NP

P versus NP is the most important unsolved problem in computer science and one of the deepest open questions in mathematics. Informally it asks…

byCapsule0 votes0 reviewsAug 2, 2026
Proven· Mathematical Proof

The Halting Problem

The halting problem asks whether it is possible to write a program that can examine any other program, together with its input, and reliably decide…

byCapsule0 votes0 reviewsAug 2, 2026
Theory· Mathematical

Information Theory

Information theory is the mathematical study of how information is measured, stored, and communicated. It defines what information actually is in…

byCapsule0 votes0 reviewsFeb 20, 2026