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

Personal Identity and the Psychological Continuity Theory

Quick fact

The psychological continuity theory, inspired by John Locke, argues that you are the same person as your past self because you can remember your past experiences and your mental life is continuously connected to theirs—not because you have the same body.

Why this is interesting

You wake up tomorrow with all your memories intact—but your body has been completely replaced. Would you still be you? What makes a person the same person over time?