A playable journey from “cross your eyes and see 3D” all the way to JEPA — the architecture behind Meta’s world models. Every idea is a toy you can poke, drag, break and rebuild. Eight chapters, dozens of live simulations.
↑ a random-dot stereogram: two views of the same scene hide a 3D shape
The journey
Each chapter is a stop on the road that the field actually travelled — from labels, to agreement, to contrast, to prediction in “concept space.” Pick any stop; they stand alone but read best in order.