Vox producer Phil Edwards spoke to James Gleick, the author of Time Travel: A History, about how the idea of time travel evolved over time particularly around the question of traveling back in time to kill baby Hitler.
The above video takes a tour through the history of time travel killings, from H.G. Wells’s invention of time travel to modern pop culture like The Terminator. (If you want to truly geek out on time travel, this site provides a great timeline.) Though the fantasy of killing Hitler is comic on its surface, there’s surprising depth to the philosophical dilemma.