you call THAT a definition?
moving from nomadic life to agricultural life fits that bill... do you call that "playing God"?
Uh, not quite. I'm pretty sure what the writer was saying is this: The "nature of what it means to be human", despite whatver variation in experience there's been over the centuries and over the globe, has always had some fundamental commonality of meaning - and that meaning's about to be radically changed.
Honestly, I don't know what it is you're trying to prove here. You largely don't even disagree with what I'm saying. Apparently you just have some sort of problem with the way I'm saying it. It's kind of a bizarre hangup.