Does religion carry any scientific relevance? How did the universe become asymmetrical? Will we be able to overcome death? Sean Carroll addresses audience questions after his lecture. Subscribe for regular science videos: Dr Sean Carroll is an astrophysicist at the California Institute of Technology. He has written a variety of popular science books along with textbooks and has long been interested in the biggest questions in astronomy: Where does probability come from? How does time work? What is dark matter and dark energy? Watch the full talk here: The Ri is on Twitter: and Facebook: and Tumblr: Our editorial policy: Subscribe for the latest science videos: #SeanCarroll, #TheBigPicture, #QandA, #ScienceDiscussion, #PhysicsInsights