TLDRscience · interactive explainers

The deepest ideas,
drawn in light.

Seven explorers into the ideas at the far edge of mathematics, physics and biology — a row of open problems, a settled revolution, a 358-year-old riddle, a string that folds itself into life's machines, the experiment at the heart of quantum reality, the spooky correlations that Bell turned into a test, and the holes in spacetime from which not even light escapes — each built up at three levels of depth and traced out in live, hand-drawn visualisations. Pick a door.

Seven explorers · three tracks

Track 01 · Unsolved

The open frontier

The deepest questions still standing — six of them carrying a million-dollar prize.

Mathematics · 6 of 7 still open

The Millennium Prize Problems

Seven problems chosen as the hardest open questions in mathematics — six unclaimed, one solved, $6M in prizes.

Enter

Track 02 · Solved

Cracked at last

Hard problems that resisted for decades — then fell.

Track 03 · Physics

How reality works

Settled, exhaustively tested foundations — relativity, black holes and the quantum.