Every August for the past 13 years, thousands of freethinkers have trekked to Nevada's Black Rock Desert for a weeklong celebration of the new. The rules are few: participation and self-reliance are mandatory, money and spectators are not allowed. For a wild, anarchic week as many as 30,000 people have communed and shared their creations. The people who come include anarchists, Internet millionaires, ravers, punks, hippies, academics and suburban parents. What they create ranges in size and scale, but each year always culminates with the bonfire of a massive human figure.