Board Thread:Theories and Speculation/@comment-27082825-20150116155842/@comment-3279282-20150122235118

I'm telling you that they can't use it. There simply is no "deeper reality". If it was the real world, we couldn't know because Kisame could have decided not to use it. But since it's a fictional story, the characters don't have their own consciousnes. They can only do what the author decides.