Both can be, but the teapot is an arbitrary enough stand-in that the idea behind what I said should be clear.

Because we do not know what it is we could assume it is anything, it could also be Kurt Cobain, Elvis Presley and Jim Morrison in a pink whirlpool in space.

But just because we can't as of now disprove that theory, doesn't mean it is a good one, unless we judge entertainment value. White spots on the map of knowledge seem to have an attraction on people that feel the need to put the most colorful, most exciting things there.