Did the universe have a beginning? Sir Roger Penrose, Sean Carroll and Laura Mersini-Haughton answer your questions on the big bang theory. Watch the full q&a at Subscribe to the Institute of Art and Ideas Roger Penrose is an English mathematical physicist, mathematician and philosopher of science. He is Emeritus Rouse Ball Professor of Mathematics in the University of Oxford and Emeritus Fellow of Wadham College, Oxford. He is author of The Road to Reality: A Complete Guide to the Laws of the Universe, a comprehensive guide to the Laws of Physics, as well his own theory on the Penrose Interpretation. Sean Carroll is a theoretical physicist, specializing in quantum mechanics, gravitation, cosmology, statistical mechanics, and foundations of physics. He is author of Something Deeply Hidden and founder of the popular podcast Mindscape. Laura Mersini-Houghton is a cosmologist and theoretical physicist
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