We don't know their level of happiness, but recent versions showed happiness and health greater than ours. In any case, they didn't collapse the entire planet's

We don't know their level of happiness, but recent versions showed happiness and health greater than ours. In any case, they didn't collapse the entire planet's systems in a few hundreds years, so our systems don't stack very well Prehistoric man may well have been happier than people today... while things were good. When food was plentiful, the weather nice and the living' was easy, it was all roses. Until your mate busted a leg ... and died. Until your kid gets a toothache ... and then dies. Until the rains don't fall, the herds go away... and your entire clan dies. They probably weren't so happy then. This rose colored glasses view of the deep past ignores the extreme misery people endured to get to the good times. It is, IMO, just absurd. Finally, the idea that prehistoric folk lived in harmony with nature is just silly. They routinely set huge wildfires to drive prey, they would chase entire herds off cliffs and then harvest a handful of animals. Yes they laughed, loved and wept tears of joy. But they also murdered, raped and wept tears of sorrow. And experienced the latter far more often than anyone today. (For example, almost everyone who survived to adulthood wee half or more of their children die. And I would be very very surprised if each child's death was not felt as keenly as people do today).