The “Atlantis” thing is a justifiable position that we have been lied to about history. There was a pre-diluvian civilization that was fairly advanced. Who knows how advanced but they built cities.
Plato didn't just write about Atlantis, but also about his dialogues with Egyptian priests about past civilizations. So it's far from the philosophical exercise this guy says it is.
Also note that Egyptian priests of that time were guardians of superior technology and probably genetically different to today's population of Egypt.
For sure. They were more related to Brits, I guess, than to anyone else. If Tutankhamen was representative of the upper class genetics.
They built pyramids.