Editor's note: This segment was rebroadcast on Sept. 30, 2025. Click here for that audio. In the early 2000s, thousands of U.S. schools had their students race the clock to stack cups in gym class.

Blink, and you’ll miss Michael Haig’s blur of cups and hands as the world record holder assembles cups into a pyramid. The ambidextrous phenom, who just turned 5 on Aug. 26, can’t get enough of cup ...