system
A chat on 4chan
human
One of them used to have a golden cap then Rome took it
gpt
Didn't Khufu AND Khafre have golden capstones? Maybe I'm not remembering correctly
human
golden capstones were added later as symbols of royal power and priestly dominance. Originally they were granite. Copycat pyramids made by later dynasties had capstones, some examples survive.

Pyramids also had another purpose of balancing planetary energies. Enough time has passed that this no longer happens; the earth's poles and human civilization has moved on, so the pyramids are like a badly out of tune piano.