The Universe Is Only Two D, Right?

Maybe our universe actually is only two dimensions, and we have this experience of a third dimension because the richness of the quantum fields gives the illusion of a third dimension. That's a fun idea, and it helps us think about how to solve black holes and construct string theories. And goes to fun philosophical arguments like, well, what does it really mean to have three dimensions? Or two plus one, illusory dimensions. But, you know, if that's the case, that would mean that fundamentally, the whole universe really is two dep yo were all inside a comic book,. It's like everything in the universe is a two de object in that case!