We keep hearing versions of your comment, despite recent breakthroughs in hundreds of open problems that mathematicians have been trying to solve for the past century. Skepticism is good up to a point, but it needs to be amenable to new evidence. You need to keep your mental model up to date with reality.

Don't trust me, experimenting is cheap; get a $20 subscription at Anthropic or OpenAI, download Codex or Claude Code, and try the heaviest model on a project that you estimate will take you around a week to complete without AI. I was a skeptic until I did exactly that and it shifted my perspective by quite a lot.