I'm looking at the millennium puzzles, and independently of those puzzles I had asked it for a fluid dynamics simulation engine that runs in my browser, and it put one together for me so I could play with aerospikes and watch the formation of Mach diamonds in rocket engines. The isochrone map generator has also been stuck on my to-do list for years, and yet now thanks to Claude, I have it, and it's real-time and multimodal.
Even before then, the free trials of Claude Code and Codex at the end of last year and start of this year… despite their flaws, they could write all the code I've ever been paid to write. Sure, limited speedup, Amdahl's law and coding is not the only part of the job, but anyone who was fine at PM and QA but not code no longer needs a coder.
Even before then, I looked at the maths puzzles they were doing well at, and I found I did not understand the questions let alone the answers.
I remember when the ability to generate music and art was "uniquely human", and sure there's a lot of cringe there with those models, but they're also winning awards and causing controversy by doing so, and artists are losing clients; I remember when the board game Go was considered to require "human intuition we could never make a computer solve, totally different to chess" (and I remember when chess was so, too).
When I was a kid, cheques and letters on addresses often got read by a human; the OCR which automated this is also AI, though these days image-to-numbers is the "hello world" of the field.