Probable ImpossibilitiesBy: Alan Lightman The acclaimed author of Einsteins Dreams tackles "big questions like the origin of the universe and the nature of consciousness in an entertaining and easily digestible way (Wall Street Journal) with a collection of meditative essays on the possibilitiesand impossibilitiesof nothingness and infinity, and how our place in the cosmos falls somewhere in between. Can space be divided into smaller and smaller units, ad infinitum? Does