We’re all familiar with the glib screensaver dream: “a hammock on the beach, between two palm trees, cocktail in hand, looking out over the turquoise sea.”In his book Transcend, Scott Barry Kaufman argues that our ideas of “paradise” tend to be fantasies about the things we lack: to a starving man, paradise is an opulent, all-you-can-eat buffet; to a testosterone-packed, sexually frustrated teenager, a group of horny virgins may seem the ultimate reward.