This week on “Uncanny Valley,” we go behind the scenes of our Nathan Fielder cover story, unpack tech billionaires’ generous promises, and discuss the suspicious letters sent to US election offices.

It’s the latest in a growing wave of bets that AI companies are making on brain data.

The DNA inside our cells isn’t just a series of instructions, but something far more dynamic. Like scientists, AI models don't yet have the data to properly decode it.

Henri Kagan and Kensō Soai designed chemical reactions producing only one of the two mirror-image forms of a molecule—an important finding for the synthesis of pharmaceuticals and other biological substances.