I think, if you take Epenthesis' statement and shift up a meta-level, you're going to lose a lot of the clarity in what you're saying. A cup happens to have a f

I think, if you take Epenthesis' statement and shift up a meta-level, you're going to lose a lot of the clarity in what you're saying. A cup happens to have a fairly stable, consistent representation in a variety of relevant timescales. But if you want a computer to identify something like "an isomorphism," or "a useless activity," or "something to help a thirsty person not dehydrate," it is not so clear what the rules are anymore.