Dave Goldberg works on issues in theoretical cosmology. He also writes books that make physics accessible to the general public including the subject of today’s interview: The Universe in the Rearview Mirror: How Hidden Symmetries Shape Reality. In this interview, Professor Goldberg (or Dave) explains some of the ideas covered inside the book and discusses why the sort of physics he’s talking about matters so much. His first book (co-written with Jeff Blomquist) is A User's Guide to the Universe: Surviving the Perils of Black Holes, Time Paradoxes, and Quantum Uncertainty. You can follow him on twitter at @askaphysicist. Be sure to rate and comment in iTunes. Also, you can find the show on Stitcher.