alt Hacker NewsRight, but in the context of this article about these wretched enfents terribles, and later when we get to the rationalist termite colony, it's clearly something to chuckle at. Like, the fact that people think this "bifurcation event" idea is real is legitimately funny.
I see your point, but I don't think he's being sarcastic in this paragraph. To me this paragraph isn't sarcasm rather he's presently a serious factual recounting of the logic driving AI evangelists that he then undermines by contrasting it with the callousness, messiness, and illogic of the people pushing this narrative. (I too had a good chuckle at the termite description)
But this is veering into lit crit territory, so agree to disagree