Jeff Bezos still remembers the exact homework problem that ended his dream of being a physicist. The trick his classmate used to solve it is now how ChatGPT thinks. Bezos was in Princeton's Honors Physics track. The class started with 100 students. By quantum mechanics it was down to 30. He'd been getting A+ on almost everything until he hit a partial differential equation. Three hours with his roommate Joe. Nowhere. They walked it down the hall to Yasantha, the smartest student in the…