I’m fairly sure that one day, a long way into the future, humanity will discover a way of travelling through time.
If that’s true then there’s a good chance that someone from the future has travelled back to the present day. Why? To avoid embarrassing themselves, obviously.
This video explores what would happen if time travel was an everyday occurrence. And that it was so easy you could hop into your time machine for any reason whatsoever.
The main protagonist makes a tiny faux pas, and then spends a whole day trying to fix his mistake. Leading to quite a few wrinkles in the timeline.