By age 2, most kids know how to play pretend. They turn their bedrooms into faraway castles and hold make-believe tea parties. The ability to make something out ...

Laylah Rivers had already been a paratrooper in the U.S. Army and worked at various tech companies across the West Coast.

The secret to dreaming up the next great AI startup may be far from a computer. It means getting out into the world and getting human feedback.