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 Metaphysics of Objects and the Problem of Composition

Quick fact

The problem of composition asks what it takes for several things to form a single object. Surprisingly, there is no universally accepted answer, and some philosophers argue that no ordinary objects exist at all.

Why this is interesting

You are looking at a table, but is that table really an object? Or is it just many tiny particles arranged in a certain way? When do several things truly become one thing?