The things I think about.

I’ve had this thought for a a couple days now:

“If man had never seen flying creatures, would he have invented the wing? Would he even had a desire to fly?”

My gut tells me no. The only thing they would see in the air are clouds, or things that are thrown. I could see people wanting to emulate clouds, so balloon’s might be around. Also, I could see projectile invention, such as transportation rockets.

I just don’t know if the concept of “glide” in the air would exist.