God's messenger

“He believed he was God's messenger and was eventually driven insane trying to prove his theories of infinity.” Cantor did and was, according to the blurb (a word that celebrates its centenary this year, incidentally) for Dangerous Knowledge, a documentary on BBC FOUR tomorrow night and, according to the blurb, “the story of the mathematicians who have seen facets of the universe as it really is and driven themselves mad in the process.”