I've never been able to figure out how this (and most other philosophical arguments against AI) don't apply just as well to individual neurons. Though I suppose if one wants to frame it as an argument that neither computers nor human brains are capable of intelligence, I might be persuaded.

In fact, for sake of argument, I claim that I am, in fact, just an elaborate system of symbolic manipulation with no actual comprehension or conscious experience, a bunch of meaningless neural impulses with no greater understanding of English than the "Chinese Room" understands Chinese; and I invite anyone to attempt to persuade me otherwise.