“One day they will ‘find’ that human beings have crossed the Earth at will, and for various reasons, for a long, long, long, time.”
Civilizations long turned to dust. I think a lot of people just don’t want to admit they don’t know everything.
We cant even figure out how to build the pyramids or raise an obelisk with Egyptian technology. Which is no big deal except people today act like they have it all figured out. I would say we are dumber with less ability to survive than ever before. Without modern conveniences most Americans are screwed.