my theory regarding pyramids
i always heard they are tombs and help the pharaos to get to the stars after they died. however they never were used as tombs as far as we can tell, but i still believe they were meant to sent the pharaos to the stars. with the remote viewing docs we see how the CIA tried to astral project/remote view and use it to gather knowledge.
i believe the pyramids are meant to help tune into the astral realm where the pharaos then can talk with the gods/stars/whatever and gather knowledge. kind of like sensory deprivation tanks help with meditation and relaxation the pyramids likely served a similar purpose, and possibly tuned into the stars they are aligned with specifically.
in the case of those boxes in your video it may serve the same purpose without tuning into something, like orion.
https://www.youtube.com/watch?v=LHDSmKvs9Tccould be the same without being attuned to the stars. but once again, how were those moved and put in those small places?
one more fringe theory of mine:
"magic" is just the old term for technology. back then they were at some point where they could use technology aka magic to shoot fireballs (flamethrowers) have "crystal balls" to see other places (TV), fly around (planes and helicopters) and all the other stuff. however the cataclysm came, flood, asteroid, nuclear war, whatever you want to call it, and soon almost all the knowledge was gone after a generation or so. from time to time they discovered some old technology/magic, but since they couldnt explain how anything of it works it became this "magical" and mysterious. however soon the development started again, but since it was explained this time how the things work they gave
>>5149861its about the same shape being found across the world done by cultures that supposedly never were in any contact, not it being hard to make.