Herzog talks about this a bit in his cave-painting movie[0]. It's fascinating to think that for thousands of years, our ancestors lived without any significant

Herzog talks about this a bit in his cave-painting movie[0]. It's fascinating to think that for thousands of years, our ancestors lived without any significant change to their world. I like to imagine that they were pretty happy with that (subject to the normal animal stresses of survival) -- but as you say, it's impossible to tell. [0]: https://en.wikipedia.org/wiki/Cave_of_Forgotten_Dreams https://en.wikipedia.org/wiki/Cave_of_Forgotten_Dreams Trailer: https://www.youtube.com/watch?v=wmMUlNeLApU https://www.youtube.com/watch?v=wmMUlNeLApU