If the Silicon Valley of the 2000s and 2010s prided itself on an anti-fashion ethos—the hoodie, the New Balance trainer, the uniform of studied indifference to material possessions—then today’s tech billionaires have flipped the script. These days, Meta CEO Mark Zuckerberg is a jiu-jitsu-practicing, Richard Mille-wearing, power-lifting tycoon whose aesthetic suggests something between a Bond