Quite simply, hallucinations, costs, and physical limits. Hallucinations, so far intractable, will of course impede AGI. On the physical side, cooling the chips

Quite simply, hallucinations, costs, and physical limits. Hallucinations, so far intractable, will of course impede AGI. On the physical side, cooling the chips gets difficult and could slow things down. And costwise, if OpenAI or any of the other big money-hemorrhaging services finally kicks the bucket and the AI frenzy cools down, it's hard to have AGI if no one funds it.