On Feb. 16, hundreds of millions of households watched as humanoid robots from four different Chinese companies danced, acted in a comedy skit, did parkour, and performed martial arts onstage at the Spring Festival Gala, China’s most-watched television broadcast. Across the country, drone shows lit up the night skies as China celebrated Lunar New Year, the synchronization of tens of thousands of drones coordinated by artificial intelligence.  The physical AI fervor has traveled across the