Again, I don't remember when I started reading this, but I'm on the third chapter and I'm currently getting a lot out of a brief detour on human thought (which I assume has been written by Graeber, I don't know): Neuroscientists claim the "window of consciousness" is open for seven seconds, and we spend most of our lives on autopilot, but what they often fail to mention on the back of this is that human thought is dialogical. That is, our window expands when we're talking to someone else.