Follow your curiosity

What discovery has been shared with you?

FACTREE gives you something interesting to discover every day — and something worth talking about together.

Start with one fact. Explore it, go deeper, then follow whichever branch catches your imagination.

Choose subjects for a surprise

Exploring any topic

Begin your discovery

Your next discovery is one click away.

Choose one or more subjects above, or leave Any Topic selected and let curiosity decide.

Philosophy

The Epistemology of Scientific Models and the Realism Debate

Quick fact

Scientific models often contain deliberately false assumptions—like frictionless planes or point masses—yet they can deliver highly accurate predictions, which raises a puzzle: how can a false model give true knowledge? This puzzle is central to the realism debate.

Why this is interesting

When you draw a map, you omit most roads—yet you still find your way. Scientists do the same with models, but they then claim to know what the real terrain is like. How can a simplified, false picture yield true knowledge?