It appears that Cal Newport has decided to be the one to most publicly initiate the inevitable Trough Of Disillusionment stage of the Hype Cycle. I'm not sure it'll last very long, though, considering (for starters) Google DeepMind's gold medal at the recent International Math Olympiad. Also, while he criticizes the cost-cutting measure which is ChatGPT 5, he doesn't even mention ChatGPT 5 Pro, which is performing excellently.