The poor man's a borderline schizophrenic. He, at least, has an excuse. All I can say is maybe the omega 3 and 6 fatty-acid-enriched, fish heavy diet will calm his miswired brain. I cannot hold him more responsible for his ravings than the crazy lady at the bus depot. May the Saint who watches over loons do his best. You never know, one of these days the disease may loosen its grip on him, like the "Beautiful Mind" guy.
I basically agree with you. Anyone who is that great a chess player likely has his brain wired a bit differently from the average person.