DESC: This is a collection of 13 essays and an extended interview that was broadcast over the BBC in 1992. It ranges from the autobiographical to the purely scientific. Building on his earlier work, Hawking discusses imaginary time, how black holes can give birth to baby universes, and scientists' efforts to find a complete unified theory that would predict everything in the universe, a concept that he believes will come to seem as natural to the next generation as the world is round. In addition, he looks at how science theory converges with and diverges from science fiction, as well as how science fact interfaces with our own lives.