Anthropocene describes what we are doing to our environment, while posthuman is largely phenomenological, a condensed articulation of what it’s like to live in a world where we are constantly making and remaking ourselves, especially via biotechnology. And surely there is some truth in these points, but I want to suggest that the apparent disjunction obscures a deeper unity. A world in which we remake our environment and ourselves is a world that does not feel human to us. We do not know how to play the role of gods, and on some level perceive that to act as gods is to betray our nature.
–Alan Jacobs, Anthropocene theology