Terry Gilliam (/ˈɡɪliəm/; born 22 November 1940) is an American-born British filmmaker, comedian, animator, actor and former member of the Monty Python comedy troupe.
There is strong evidence that the observable universe is composed almost entirely of ordinary matter, as opposed to an equal mixture of matter and antimatter. This asymmetry of matter and antimatter in the visible universe is one of the great unsolved problems in physics.