Knowledge

In CF, knowledge is non-refuted IGC — an idea that has survived all criticism so far, for a particular goal and context.

CF's definition differs sharply from the classical "justified true belief" definition:

Classical	CF
Justified	Not required (rejected)
True	Cannot be guaranteed; only non-refuted
Belief	Acceptance is non-refuted; belief is a state

What CF's knowledge is not

• Not infallible. CF is fallibilist.
• Not absolute. Knowledge is always for an IGC, with a goal and context.
• Not permanent. A new refutation can overturn it.
• Not private. CF emphasises public, sharable, criticisable ideas.

Why this definition

The classical definition requires justification, which fails the regress. CF's replacement avoids regress entirely: knowledge is what hasn't been refuted yet. It's a status, not a guarantee.

Knowledge and evolution

CF, with CR and David Deutsch, treats knowledge as the appearance of design — information adapted to a purpose. This is what evolution produces. Knowledge is what survives the evolutionary filter of criticism.

"Knowledge is the appearance of design. Which is information adapted to a purpose." — criticalfallibilism.com