> Relatedly, a year ago I was excited to learn the Rust language. Now I don't see the point (And I'm building tools with Rust). I'm sure this sentiment extends across fields.

I'm in a very similar boat! I've had rust on my to-do list for a very long time, but never found the bandwidth in the personal life to actually dig in enough to get proficient. Since AI has come around, I've been able to write a lot of tools in rust and just learn little pieces as I need to. My first couple results were not very great as I didn't know what I was doing, but I've learned enough about structuring good rust apps from the experimentations that I can crank out something pretty decent now.

The AI is so good at holding my hand that it has fundamentally changed how I approach unknown languages and stacks. I used to pick the best stack that I was proficient with for the job. Now I pick the best stack for the job, and become proficient in it. Pretty wild times we live in.

> and become proficient in it

From reading your comment, I suspect you are not becoming as proficient as you might think.