MinutePhysics host Henry Reich has made this exciting new whiteboard animation documenting and drawing the different forms of time travel used in many films, books, television shows, and video games and the challenging moral questions each present.
For ages I’ve been thinking about doing a video analyzing time travel in fiction and doing a comparison of different fictional time travels – some do use wormholes, some relativistic/faster than light travel with time dilation, some closed timelike curves, some have essentially “magic” or no consistent rules that make any sense, or TARDIS’s, or whatever.