The paleo diet trend, if I understand it correctly, assumes that humanity has evolved to eat a certain way. For the vast majority of human history, our species has consisted of hunter-gatherers. It is for only a tiny portion of human history that we have had access to processed foods that may taste good, but are contrary to our evolutionary biology. So our diets should have a lot of fresh fruits and vegetables, lean game meat, fish, and oils from nuts and seeds.
Simple, right? Well, the recipes are a lot more complex than that. In fact, they’re so complex that, as Dan Piraro jokes, there’s no way that early hominids could have managed them.