> There is really _never_ a time when a CAPTCHA will require you to execute code on your machine.

I think the concern is the user not knowing they're executing code on their machine.

And as a counterexample: some captchas require you to compute something expensive to prove you're not a llm scraper or whatever. It's normal for captchas to require you to execute code on your machine, it's just usually done within the browser's sandbox.

And anyway, these things are completely incomprehensible to non-technical users.

>And as a counterexample: some captchas require you to compute something expensive to prove you're not a llm scraper or whatever.

I've never run into one of these. What do they ask you to compute?