From PhilPapers forum Philosophy of Mind:

Space Kaspar Hauser or “What is it like to be a bat” reloaded...

A space Kaspar Hauser who spends his whole life isolated in a dark, empty space capsule far away from the next solar system knew everything about particle physics and cosmology a human being could possibly know (to know everything about every elementary particle in the universe...). 

Obviously he has no knowledge about a bat although a bat has spatial location, spatial dimensions and can be broken down into spatial parts. But he has knowledge of every elementary particle in the universe.Particle physics and cosmology do not generate knowledge about the spatial bat, nor do they generate knowledge"What it's like to be a bat". The question arises how do we know about the levels which supervene upon the elementary particles of a bat?