PROOF OF TIME TRAVEL. This picture is from the 1950's and some people claim this is proof of time travel. The man in the picture looks like he is talking on the cell phone. Well, I am struggling with the cell phone. A form of Radio Telephone was invented was invented slightly after - - well, 2 decades. But we know that the "dark" military operations have cutting edge technologies long before we are allowed to have it. A form of "Walkie Talkie" does not need "cell towers or relay antennas, but has direct contact for long distances. Than again - - from what I have seen and what I know, could he be a Time traveler ? Yes.