Would you use time travel to kill baby Hitler? Well? Would you? Vox’s Phil Edwards asked author James Gleick about the history of this unusual philosophical question. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Small Planes Over Big Oceans (ETOPS Explained) Gender determination: More complicated than you thought How Laser Tattoo Removal Works This Is How Your Brain Powers Your Thoughts Why the insect brain is so incredible The Mysteries of Chinese Alchemy