“AGI really could disrupt the world. But GPT-5 is not going to do any of that; it's not going to be smart enough to revolutionize fusion; it's not going to be smart enough to revolutionize nanotech, and starships most definitely aren't going to be here in 2024.”

Gary MarcusResearcher

Cognitive scientist, NYU professor emeritus, AI critic and author

GPT-5 did not even ship until August 2025, and through the end of 2024 there was no AI-driven revolution in fusion or nanotech and no interstellar starships. Marcus's deflationary call was borne out.