He also didn't say it would be "solved". He said in 2025 it would be writing almost all the code "in 12 months", but that it would also still need programmers to guide and manage it at that point. People always leave off the end of his quote.

Edit: Boris Cherny, the lead of Claude Code did say on a podcast that programming seemed "largely solved" "for the kind of programming I do" (writing harnesses I presume). Maybe that's what they were confusing it for.