Imagine a mind so sharp it can see the invisible mathematical scaffolding underneath human behavior, then so wired for pattern that it starts constructing terrifying alternate realities that do not exist. That double-edged lens is the subject of this episode: John Forbes Nash Jr., the West Virginia mathematician whose 28-page Princeton dissertation rewrote game theory and whose mind nearly destroyed him.

We trace the work the Hollywood version sands away: the Nash equilibrium, his more important and harder Riemannian embedding theorem, his work on parabolic and elliptic partial differential equations, and the Abel Prize he received in 2015 alongside Louis Nirenberg. We unpack the years at MIT and the RAND Corporation, the loss of his top-secret clearance in 1954, and the human cost the film glosses, including his early relationship w ...