We know from autistic savants that the human mind is capable of some incredible natural abilities. Extraordinary calculations, feats of memory, learning and language acquisition, astounding capabilities in art and music, are possible to the human mind. Some of these abilities can even be induced in just about anyone using techniques like
transcranial magnetic stimulation.
But what, if anything, does schizophrenia tell us about the mind’s capacities. After all, how could hallucinations tell us anything meaningful about the mind?
Well, for one, they tell us what perceptual phenomena the mind is capable of experiencing. The mind is capable of perceiving an external will, esp, external perceivers, an hallucinatory world, and while it may look like there is nothing there on the other end of the line, the perceptual capacities are still there.
But what good are experiences that are only perceptually real? Well, it means that if we were ever to develop technology to hack into the human brain, the mind would be capable of processing these experiences.