Time Traveler Caught?

[William]

You don't need a radio tower for cell phones. Plus there could be more technologies in the future? Walkie talkies already exist lol. Maybe they have a spaceship? Haha.

Then if they can timetravel why don't they do it again to get rid of the evidence :P?

They might not know it existed, or maybe they wanted us to see that. (Plus we don't really have that much information on them, they might care less.)

But one other possibility is Parallel Universes (an unlimited number of them and a new one spawns off every time you make a fleeting thought) meaning that if they did go back in time to change the past they would only change their future, and not ours, because ours already happened.

Like if you went back in time to stop your dad from getting married and accidentally killed him, you would cease to exist, but then who killed your father?

;)