" Mainly we were just curious about how the new archaeological evidence that had been building up for the last thirty years might change our notions of early human history, especially the parts bound up with debates on the origins of social inequality. Before long, though, we realized that what we were doing was potentially important, because hardly anyone else in our fields seemed to be doing this work of synthesis. Often, we found ourselves searching in vain for books that we assumed must exist but, it turns out, simply didn’t – for instance, compendia of early cities that lacked top-down governance, or accounts of how democratic decision-making was conducted in Africa or the Americas, or comparisons of what we’ve called ‘heroic societies’. The literature is riddled with absences. "

― David Graeber , The Dawn of Everything: A New History of Humanity