Tell me you can still tell it's two separate layers though. You aren't actually getting visual feedback, you are combining the actual visual feedback from your eyeballs with the pseudo-visual feedback from your imagination.

I would say when I do this, it's more like underlaying my imagination with reality, than overlaying reality with imagination - the combination is still clearly imaginative. Right? (I think I'm a 3 or a fraction higher, on the apple test scale)