in their discussion of "the origins of cultures," Graeber and Wengrow note (124) that "the proliferation of separate social and cultural universes [...] must have contributed in various ways to the emergence of more durable and intransigent forms of domination"
how domination came to emerge is a question they return to throughout the entire book (see 365, 382, 413, 416)
"the hardening and multiplication of cultural boundaries" (125)