He's a very smart guy, of course. And he's friends with a lot of folks (scientists) who have seen a lot of classified stuff re: this subject.
Watch the youtube.
Pretty easy.
What did Garry say that you found particularly intriguing?
There is a history for this stuff that goes all the way back to the beginning of civilization.
Abraham’s family came from UR at the time that the Sumerian civilization was cracking up and going down. They were basically refugees. The Sumerians were as to the 2nd millenium bc middle eastern empires like the babylonians as the greeks were to the romans.
Sumerian myths make it look like space aliens came to earth.
In 2016 Elon Musk was interviewed in one of the Persian Gulf cities for arab television. the interviewer preambled his question about UFO’s with the observation that in his part of the world it is believed that Adam and Eve were space aliens.
We have the genetics to show that human evolution is much slower than a mere 6000 years which is the length of the jewish calendar which dates to the beginning of the sumerian civilization.
So something else —besides just space aliens landing—is going on.