I suspect the challenge is not in getting that particular feature to work in isolation (which I agree seems trivial). But rather, in getting it to work in a wa

I suspect the challenge is not in getting that particular feature to work in isolation (which I agree seems trivial). But rather, in getting it to work in a way that integrates with the 10,000 other decision boundary problems that a large-scale AI system needs to be able to navigate. That is to say: not so challenging that they couldn't have got wrapped by now, if they cared enough to do so. But not necessarily trivial, either.