The paradox of popping back in time

BBC - Future - The paradox of popping back in time: "Here we go again. The movie Predestination, released in the UK this week, is the very latest in the long history of time travel films. There’s been more than 100 since the Terminator and Back to the Future franchises began 30 years ago – all of which are science fiction that have little to do with the science facts."