You are a fool if you think you can detect AI reliably from such a short sample. It seems not to have occurred to you that some people can write with expression and wit, and AI emulates their style.
You are a fool if you really think that the linked text is human written. I interact with LLMs basically daily, it's incredibly easy to spot their default styles. And, honestly, you should trust Pangram over me.
"AI Writing Detectors" are absolutely full of false positives, as anyone working in education or related fields can attest.
Ooh, you interact with them basically daily! Amazing! Tell us more, we long term residents of a technology news forum are ignorant of such wonders. We know nothing of 'gradient descent' or the 'vibe coding' that travelers speak of.