Are you suggesting American humans have reached the pinnacle of understanding how the Universe works?
With our technology, we could easily avoid being seen by a hunter-gatherer society.
Do you imagine that your society does not have similar blind spots?
How much arrogance there is in the modern Euro-centric world. Because the society has explored beyond what our grandparents believed possible, suddenly we are the pinnacle of the Universe.
I'm thinking more about the hard limits of physics.
Consider for example the "one-electron" hypothesis --- a far simpler take on it is that the electron is a fundamental particle and that we are nearing an end-game of understanding sub-atomic physics and realizing Einstein's dream of a grand-unified theory --- the universe doesn't seem to be shaped and formed so as to allow for FTL, so one instead needs to work within the bounds of converting mass to energy.
With our technology, we could easily avoid being seen by a hunter-gatherer society.
Do you imagine that your society does not have similar blind spots?
How much arrogance there is in the modern Euro-centric world. Because the society has explored beyond what our grandparents believed possible, suddenly we are the pinnacle of the Universe.