We do overthink things to the point of stupidity. And we are mortal, not "all-knowing" but you make it sound like mankind is no different than a dog. Call it evolution, call it what you will. we have always done things that were once considered impossible. Because the human spirit does not believe in impossible. We are dreamers and we are doers. We only become skeptics and cowards when the masses are told over and over that something is impossible by the people pulling strings. Those people are not looking out for your welfare.