I've seen a similar quote attribute to Bill Gates;

"We always overestimate the change that will occur in the next two years and underestimate the change that will occur in the next ten."

I think about this quote a lot these days, especially while reading Hacker News. On one hand, AI doesn't seem to be having the productivity and economic impacts that were predicted, but on the other, LLMs are getting gold medals at the Math Olympiads. It's like the ground is shifting beneath our feet, but it's still too slow to be perceptible.