The most common mistake people make when thinking about prehistory and how to avoid it.
In "The Dawn of Everything, A New History for Humanity" David Graeber gives what I think might be the best piece of advice I've ever heard for understanding deep human history, and that is to get your mind out of the Garden of Eden.
People speculating about prehistory before modern archeology were quick to frame early humanity as existing in a "state of nature", either with pure innocent tribal communism, or being brutish barbarous cavemen, then something happened to bring us from the state of nature into "society". Did we make a Faustian bargain by domesticating plants and animals? Why is evidence of intergroup violence in prehistory so rare? How did we fall from the innocent state of nature? This, of course, smacks of the biblical creation story, so even if people don't believe it literally, they seem to have a hard time letting go of it spiritually even in a secular context.
This is pretty much nonsense, of course. Humans have existed for over 2 million years. Anatomically modern humans have existed for at least 300 thousand years. Behaviourally modern humans (with symbolism, art, long distance trade, political awareness) have existed for at least 50 thousand years, from our best evidence, but possibly a lot longer. The time between the Sumerians inventing writing and urban living 5,000 years ago and now is only a narrow slice of human history.
If we want to understand human history properly, we shouldn't understand people of the past as fundamentally different from us. They were intelligent, politically aware people doing their best in the world they found themselves in, just like we are today. We didn't fall from innocence with the development of behavioral modernity, religion, farming, war, money, capitalism, computers, or anything else. The world has changed a lot, but people have been experimenting with different ways to live for as long as there have been people, like this example I've posted before about disabled people's role in late pleistocene Eurasian society.
People have been the same as we are now for at least the last 50 thousand years. We have lived in countless different ways and will continue to experiment. There was no fall, and we don't live at the end of history.