OMG . . . what a macaroon. This wanker knows less than zero about less than zero. No proof whatsoever. None. Zero. He thinks 1=.9999.5
I think man has proven his ability to do amazing things and make technological leaps that did not occur because of aliens; they occurred because you are smart and clever and you have always been smart and clever.
The wheel did not come from alien invention. Ogg saw a log rolling down the hill and thought about it and the wheel was created.
Drawings on cave walls do not show alien visitors. Man had an imagination even way back then and you have always liked to tell stories. Things like religon ossured to your species because you like to tell stories and control the other humans walking amongst you.
Not sure how you came up with Justin Bieber or Diet Coke, however.
I can well imagine a thousand years from now, someone discovering a Steven King novel buried in the rubble that was the SLC Public Library, and start wondering how we dealt with the haunted automobiles this King guy wrote about.
Give Me A Break.
Earth was created by happenstance and luck and the laws of physics and you humans formed and grew and prospered because it was/is natural to do so. You invented and grew and prospered and became dominant in the slum section of the galaxy, because it was natural for you.
No aliens have visited your little blue planet because we consider visiting Earth to be, how do you Earthlings say it? Slumming, yes, we call it slumming.
If you keep trying to prove we exist, well, it is butt implants and brain rewiring for you all.
So say Goth, Lord Purveyor of Planet Quagmyer, where every day is Giggity Giggity Day.