Do you think aliens in ufos have visited Earth? (And all things UFO)

If Einstein, given all of his other work and publishing, decided to go on Jerry Springer I would have to question the motives.
True, but we are talking two different animals....Springer and Rogan. Rogan isn't Springer. Springer would put Einstein, Neil deGrasse, Bill Nye, and Hawking on stage and try to figure out who was the father of Feynman. Rogan, with the same guests, would ask their opinion on time travel, extra deminsions, etc.