Joseph Murphy10 said:Since you moved this over to Philosophy, I’m guessing you’re looking for deep dives and actual debates based on your prompt rather than just raw data.
Look, we can start with the obvious—there were tons of different early human tribes out there. And honestly? The whole evolution from primitive hominids to modern humans wasn't nearly as straight line as those textbook historical materialism classes make it sound. Those courses present history as this neat, linear progression—which basically brainwashes students into thinking in one dimension unless they actually take the time to think deeper and look at the bigger picture for themselves.
If we assume what Harar said in his book is right—that we're the descendants of that specific group of Homo sapiens who made that massive leap forward—then, staying within the bounds of philosophy without acting like a know-it-all historian, we could argue that transition happened the exact moment a human became self-aware and finally thought, I am.
I'm not entirely sure what you're getting at specifically; I've actually read and bought all three of Harrian's books. In *Sapiens*, he develops a few key themes. First, he argues that humans are inherently genocidal toward other species—essentially, our rule is to wipe out whatever else is in our path. He provides plenty of evidence for this, ranging from Australia to Europe, describing various animals that thrived until humans arrived and subsequently vanished. That part is hard to dispute. We talk about species extinction being caused by human activity today, yet we often forget that this has been our pattern since our very beginning. It challenges the idea that climate change was the primary driver of past extinctions, because it's quite obvious that species disappeared precisely when humans showed up. You see this most clearly on islands and in places like Australia. Places like Australia and New Zealand had completely different flora and fauna before humans set foot there.
The second and third theses involve the necessity of large populations and connectivity for the development of human society—specifically, the ability to communicate and exchange ideas among as many people as possible. He claims that the interconnectedness of the Eurasian continent allowed the people living there to advance much faster than those in the Americas or Africa. The American continents and Africa were simply less conducive to the movement of people and the exchange of ideas, plants, and animals compared to the Eurasian continent, which is why Native Americans and African Americans progressed more slowly than European Americans and Asian Americans.
To me, his theories are quite intuitive. If the human population were to drop to a small number, we wouldn't even be able to maintain what we've built so far, let alone create anything new.
So, for philosophy and the other products of advanced civilizations to exist, you need cooperation among a vast number of people. I want to emphasize that: cooperation, not war.