quote [ It was the very late 1990s when Hershfield stepped off the bus, dressed like a doctor who lived in Beverly Hills. At 43rd and Leimert, he found a crowd of teenagers surrounding a community arts center called the “kaos Network.” This had to be it: Spontaneous rap battles were breaking out, and dancers writhed on the sidewalk, seizure-like. At the entrance, a young man sized him up.

“Would you like to hear something?” Hershfield asked politely.

“Sure, what’s your name?” the man asked.

Hershfield looked at him.

“My name is Dr. Rapp.” ]