Sam Harris speaks with Martin Rees about the importance of science and scientific institutions. They discuss the provisionality of science, the paradox of authority, genius, civilizational risks, pandemic preparedness, artificial intelligence, nuclear weapons, the far future, the Fermi problem, the  prospect of a "Great Filter", the multiverse, string theory, exoplanets, large telescopes, improving scientific institutions, wealth inequality, atheism, the conflict between science and religion, moral realism, and other topics.

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Learning how to train your mind is the single greatest investment you can make in life. That’s why Sam Harris created the Waking Up app. From rational mindfulness practice to lessons on some of life’s most important topics, join Sam as he demystifies the practice of meditation and explores the theory behind it.