Sam Harris speaks with David Deutsch about quantum physics and current events. They discuss the “many-worlds” interpretation of QM, Schrödinger’s cat, constructor theory,  quantum computing and whether it will ever be practically possible, recent developments in AI, the prospects of artificial super-intelligence, the alignment problem, antisemitism and the historical persecution of Jews, misconceptions about Israel, the future of the Jews in Israel and the West, and other topics. David Deutsch is a visiting professor of physics at the Centre for Quantum Computation at Oxford University, and an honorary fellow of Wolfson College, Oxford. He works on fundamental issues in physics, particularly the quantum theory of computation and information, and constructor theory. He has written two books, The Fabric of Reality and The Beginning of Infinity, aimed at the general reader. Website: daviddeutsch.org.uk X: @DavidDeutschOxf Share this episode: https://www.samharris.org/podcasts/making-sense-episodes/strange-truths   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.