We are the Aliens...
I am an Alien -- boo
They mow my lawn every Thursday. But I suppose you mean "extra terrestrials."<br />
People who believe that E.T.s visit or visited the earth don't seem to understand just how HUGE a distance light-year is. It takes a beam of light two seconds to cross the distance between the earth and the moon. With the best human technology it took us THREE DAYS.
If you have an open mind,and a reasoning mind,you can answer this by taking time to research the subject.The most intelligent species run this world,and to do it hidden from mosts sight gives an idea of the enormity of the gulf in intelligence between us.
Anything is possible ... it's not like that's a loop I'd be in on.
I doubt it
We are all alien to each other.