George Hotz, the hacker who jailbroke the iPhone and PlayStation 3 and now runs autonomous driving startup comma.ai, has laid out a lengthy argument for why he no longer buys the intelligence explosion thesis he once found compelling. Hotz writes that he used to be a believer, convinced by Eliezer Yudkowsky that recursive self-improvement and a hard takeoff were inevitable, but changed his mind after building an actual product. Comma ships hardware roughly as complex as a smartphone, and even at that scale, reality keeps introducing finicky details that no amount of intelligence resolves on its own. His challenge is blunt: he’d like to see the authors of a hard takeoff scenario try to change a bike tire. His literary reference point is “The Metamorphosis of Prime Intellect,” a novel where an AI achieves a hard takeoff because it stumbles on a fictional “correlation effect,” a quantum trick that lets it rearrange matter at will, but Hotz argues no such trick exists in reality. He extends the argument to software generally, arguing that it didn’t so much eat the world as remove one layer of friction and reintroduce a different one. Hotz isn’t arguing machines have no future, but that they remain bound by the same physical and logistical constraints as everything else, and there’s no hard takeoff waiting on the other side of a smarter model.