Summary
The majority of the man's brain has been destroyed. The man was found to have lost the majority of his brain when he was 14 years old.
Axel Cleeremans from the Université Libre de Bruxelles in Belgium has proposed a new theory of consciousness. He says the brain learns consciousness over and over again, rather than being born with it.
A man with only 10 percent of his brain was able to still generate a theory about himself. The man's brain is continually learning to re-describe its own activity.