Among the major figures who have tried to understand it “all” is Joel Primack, physicist at the University of California. He helped discover the “dark matter” of which 25 percent of the  universe is  composed. He and his wife, Nancy Abrams, joined us in this 2006 conversation to discuss their book, “The View From The Center of the Universe.” Among the less-than-trivial questions addressed are: how did the universe begin? How is it structured? What purpose, if any, does it reveal? What does it suggest about a transcendent power or powers? Does it have any neighbor universes? Once again we find that the best way to stretch the mind is through cosmology.