GPT-4.5 passed a three-party Turing test in 2025 — four years ahead of Kurzweil’s 2029 bet. But the machine that crossed the line was not the one he predicted would.
Kurzweil predicted the Turing test would fall in 2029. GPT-4.5 passed it in 2025 — four years early, by a path he didn’t predict.
Kurzweil’s prediction that trained skills could move between machines in seconds arrived early, decoupled from biology. The nanobots never came.
Kurzweil bet that reverse-engineering the brain was the road to AGI. The intelligence arrived on a different road — and it runs on a learning rule he called biologically unrealistic.
Kurzweil predicted strong AI via brain reverse-engineering. It arrived via transformers and text. Every destination was right. Every route was wrong.
Kurzweil predicted human-level AI by the mid-2020s. He got the direction right and the mechanism completely wrong.