I agree with him completely.
The Egyptians(as we think of them today) did not build the pyramids. They simply found them and renovated them to their liking.
Humanity got seriously FUKT up. It should give all of us serious pause, because....it seems far more often than one would expect, a meteor comes and just completely resets everything. We are not immune to it. It could be today, or it could be 80 years from now. But sooner than later another meteor WILL ko the planet again like a Mike Tyson uppercut.
The most powerful nations are always playing these little war games against eachother, investing billions in war tech, the US spending 600bil per year on the defense budget, etc. If we were fucking smart, we would all come together and throw up some REALLY reliable meteor defense systems. I know we monitor them, but not well enough. You can only watch so much of the sky right now. And if we did see one roaring towards us destined to wipe out all life in a week or so, as of right now it would just be everyone looking at eachother like "......ideas? can we nuke it????? what if we fly a ship into it to alter its trajectory!?" but we havent actually got anything in place to execute this with precision.
if we dont do anything humanity might get reset, again, or hell even completely eliminated. and then in 20k years our distant relatives will find our satellites in orbit and be bewildered by them, like we are with the pyramids.