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 Logic of Discovery and Abductive Reasoning in Science

Quick fact

Charles Sanders Peirce, the 19th-century philosopher, described abduction—or 'inference to the best explanation'—as the only logical operation that introduces new ideas, because it works backwards from a surprising observation to a hypothesis that would explain it, making it the engine of scientific creativity.

Why this is interesting

You notice the grass is wet in the morning. You immediately think it rained last night. But how did you leap from wet grass to rain, and is that leap logical?