Originally Posted by Blade_RJ
What if they are not aliens, but ancient humans, far more advanced than us ? so its not our tech but made on earth.

The same. Until there is some form of solid evidence that ancient humans with advanced technology, or aliens, or whatever, even exist, let alone are here now, there will always be at least one additional unknown to prove for them to be responsible for this.

Again, we have evidence that modern humans build high-performance craft, and have evidence that modern humans build some of them and keep their capabilities, and even their existence, secret for many years, but we have no evidence of aliens, ancient civilizations more advance than modern ones, etc., so why go with the option that requires even more evidence?

Why don't we just say that aliens visited ancient Earth, took humans to their home planet as slaves, who then overthrew their alien overlords, stole their technology, built a time machine to go back in time, accidentally made dinosaurs smart, who then stole their time machine and went back to the future, built these craft, and are now buzzing about making sure us modern humans don't build time machines to go back and muck it up for them. There is exactly the same amount of evidence to support that as aliens or ancient civilizations.


Ken Cartwright

No single drop of rain feels it is responsible for the flood.

http://www.techflyer.net