On friday 23July Penrose new book came out "The Road to Reality" Three hour-and-half lectures he gave on separate evenings last October at Princeton are online and very likely share key ideas with the book. I will get the links for those lectures. The series was called something like "Fashion, Faith, and Fantasy in the New Physics of the Universe" http://www.princeton.edu/WebMedia/lectures/ (scroll down to October where the menu lists the 3 Penrose talks) this is similar to the title of the public lecture he gave in Dublin on Friday, the day his book hit the stores. John Baez says the book is a 1000-page blockbuster https://www.physicsforums.com/showthread.php?p=266041#post266041 Baez just posted about the Hawking talk and other Dublin stuff on SPR. Has anyone seen Penrose book, The Road to Reality? Has anyone here besides me seen the Princeton talks? they give a perspective on the short list of big issues in physics, Quantum Gravity, the big bang, time, the second law. If you have a favorite big issue then watch the lecture (or read the book) and you will probably find Penrose discussing it.