Ready for a brain teaser? In this puzzle from TED-Ed, you are the protagonist in a Back to the Future scenario. You have to go back in time to set some things right, but apparently you are not meant to get it right, because you from the future, uh, your future, is also there. This time travel paradox can be a bit confusing, but I think you can find your way out of it, at least theoretically. We really don’t have time-traveling Deloreans. If you want to solve the puzzle on your own, stop the video at two minutes in. They will give you the answer and explain it thoroughly after that.
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If you get confused, I have a clue, but only if you need it. Show clue
Whether or not you solve the puzzle on your own, I think we can all agree that this would be a great premise for a full-length movie.
Source: neatorama