I mean, the integrated circuit, the equivalent of the evolution of multicellular life, was 1949. The microprocessor was 1979, and that would be what, Animals as a kingdom? Computers the size of a building are now the size of a thumb drive. What level are modern complex computer systems like ChatGPT? The level of chickens? Dogs? Whatever it is, it is light years away from what it was 50 years ago. We may be reaching physical limits for the size of circuits, but it seems like algorithm complexity and efficiency moving fast and are no where near any physical limits.

We haven’t needed many insane breakthroughs to get here. It has mostly been iterating and improving, which opens up new things to develop, iterate, and improve. IBMs Watson was a super computer in 2011 that could understand natural language. My laptop runs LLMs that can do that now. The pace of improvement is incredibly fast and I would be very hesitant to say with confidence that human level “intelligence” is definitely centuries away. 1804 was two centuries ago, and that was the year the locomotive was invented.