Would capitalism be our economic system? Has any civilizations in history been “perfect”?

Rome, Greece, Egypt, early America? Would the civilization have Free energy? What would access to free energy look like?

Has every advanced civilization depended on slave labor or an oppressed group of people who did all the “hard work” for the “upper class”?

We live in a world of convenience that makes things so “easy”, at least in America. I wonder this is like “Sodom and Gomorrah”

The one thing that really keeps me up at night is knowing that the “powers that be” have hidden the truth of earth/human history.

Anyway what would you envision an advanced human society looking like?