Sam Harris speaks with MIT cosmologist Max Tegmark about the foundations of science, our current understanding of the universe, the risks of future breakthroughs in artificial intelligence, and other topics. Max Tegmark is a professor of physics who has published more than two hundred technical papers and been featured in dozens of science documentaries. His work with the Sloan Digital Sky Survey on galaxy clustering shared the first prize in Science magazine’s “Breakthrough of the Year: 2003.” He is the author of Our Mathematical Universe. For more information about his work, please visit his MIT website and the Future of Life Institute. Episodes that have been re-released as part of the Best of Making Sense series may have been edited for relevance since their original airing.