Cognitive and the Agricultural revolutions played major roles in how humans became into being “top dog” on Earth. Harari thinks that we were able to expand our minds by cooking our food and sparing energy that was once needed for our intestines. This newfound energy was put into our brains, growing and getting more efficient. With bigger and better brains, we were somehow able to come up with a language better than any before. Some call it “The Tree of Knowledge” mutation that allowed us to think with more depth and understanding, scientists don’t know what happened 70,000 – 40,000 but we began to master advanced language skills. Therefore, we were able to explain the world around ourselves in extreme detail.
There are a few different ideas about how Homo sapiens became dominant over their counterparts, the most common idea is that we were simply better at gathering food than our ancestors and were therefore able to survive better. As much as I want to believe everything Harari states, it’s hard for me to accept it. There was no written language to record any of this, no word of mouth. Just an educated guess in what scientist think happened. It was interesting to hear about the other types of humans, especially the smaller people with limited food. I think homo sapiens became dominant because we had a language that explained more to each other than “look out, danger”. This gave a group a sociological bonding and allowed larger, more advanced villages.