The GameStop stock craze is about a populist uprising against Wall Street. But it's more complicated than that

The three-page letter arrived at GameStop's Texas headquarters 18 months before the company unexpectedly emerged as the hottest stock on Wall Street and the latest symbol of a widening populist revolt against entrenched elites.

Michael Burry, an investor known as the architect of "The Big Short," a legendary bet against the subprime mortgage securities…