Humans tried to fly for over 50,000 years....

Is there any evidence of that?

I think any human who has ever seen a bird fly longs to do the same.

This leads to experimentation, or (as in my case) leaping off a flight
of stairs at age 5, because I was certain that my cape would allow me
to fly like Superman.

Although it's impossible to prove, longing to fly seems to be
incredibly common in humans. This longing inhabits their dreams, and
(in a tiny number) their reality.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"