Even simple regex ones, since we don't know if they were created by a human or an AI.

With enough if statements, you could create a LLM.

I'm trying to think of a funny way to cite Clark's Law, but failing...

Regexes occasionally get called "black magic", and there is is an inverse of Clarke's Third Law: Any sufficiently advanced magic is indistinguishable from technology.

I think you meant “any sufficiently commoditized magic is indistinguishable from technology”, or “any sufficiently analyzed magic is indistinguishable from science.”