What Is Gravity?

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Gravity is the weakest of all the forcess its some somesense, the most mysterious. Not only because it refuses to be wedded to the other forces in some kind of theory of everything but also at hih what it does in inscrutable places. It's very hard to measure it on small scales. And it may be impossible, michael, to measure it in the situations where it is most interesting and relevant. So gravity s cas kist us all.

In this episode, based on the cover story from Skeptic magazine 26.1 (2021), Michael speaks with University of California professor of physics Brian Keating about: time, infinity, the shape of the universe, the multiverse, quantum gravity, string theory, the laws of nature, and more… Listen to this fascinating episode for free and order a copy of the Skeptic magazine 26.1 to read Keating’s cover story, complete with splendid graphics, charts, and illustrations (in print or digital formats).