The boys try and fail to do a police interogation bit, and get meta wit it. Then Dave asks Breht what the shape of the universe is, leading to an extended conversation about cosmology, including whether the universe is infinite or finite, what leading scientists deduce from the curvature of space time, the size of the observable universe, the speed of light, and whether or not our entire universe is actually inside a black hole... Then they explore the psychology of crowds - at sports games, protests, concerts, etc. - before finally launching into a discussion on the philosophy of Existentialism and the question of Free Will.