In a remote corner of the northern Nevada desert, where alkali dust meets a vast expanse of dry lake bed, something odd unfolds each year. It's a spectacle of art, culture, spirituality, and self-expression that draws a diverse crowd of around 75,000 participants from across the globe. This annual gathering is known as Burning Man, and it's a place where Silicon Valley elites rub shoulders with artists, free spirits, and seekers of all kinds.