After Burning Man, one of the world’s largest gatherings of burnouts, stoners, misfits, Old Hippies and the morbidly obese will gather on The Diag and thereabouts on Saturday, April 5th. With links to this year’s gallery of practical jokes, the meaning of “Chesterton’s Fence”, the “messianic complex” among the young and the return of the townie “Festival of Fools”.