18 | Clifford Johnson on What's So Great About Superstring Theory

18 | Clifford Johnson on What's So Great About Superstring Theory

String theory is a speculative and highly technical proposal for uniting the known forces of nature, including gravity, under a single quantum-mechanical framework. This doesn't seem like a recipe for creating a lightning rod of controversy, but somehow string theory has become just that. To get to the bottom of why anyone (indeed, a substantial majority of experts in the field) would think that replacing particles with little loops of string was a promising way forward for theoretical physics, I spoke with expert string theorist Clifford Johnson. We talk about the road string theory has taken from a tentative proposal dealing with the strong interactions, through a number of revolutions, to the point it's at today. Also, where all those extra dimensions might have gone. At the end we touch on Clifford's latest project, a graphic novel that he wrote and illustrated about how science is done. Clifford Johnson is a Professor of Physics at the University of Southern California. He received his Ph.D. in mathematics and physics from the University of Southampton. His research area is theoretical physics, focusing on string theory and quantum field theory. He was awarded the Maxwell Medal from the Institute of Physics. Johnson is the author of the technical monograph D-Branes, as well as the graphic novel The Dialogues. Home page Wikipedia page Publications A talk on The Dialogues Asymptotia blog Twitter

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103 | J. Kenji López-Alt on Cooking As and With Science

103 | J. Kenji López-Alt on Cooking As and With Science

Cooking is art, but it's also very much science — mostly chemistry, but with important contributions from physics and biology. (Almost like a well-balanced recipe…) And I can't think of anyone better ...

29 Juni 20201h 15min

102 | Maria Konnikova on Poker, Psychology, and Reason

102 | Maria Konnikova on Poker, Psychology, and Reason

The best chess and Go players in the world aren't human beings any more; they're artificially-intelligent computer programs. But the best poker players are still humans. Poker is a laboratory for unde...

22 Juni 20201h 20min

101 | David Baltimore on the Mysteries of Viruses

101 | David Baltimore on the Mysteries of Viruses

I recently saw an estimate that if you took all the novel coronaviruses in the world (the actual viruses, not patients), you could fit them into a bucket no more than a couple of liters in volume. A h...

15 Juni 20201h 14min

100 | Solo | Life and Its Meaning

100 | Solo | Life and Its Meaning

A podcast only hits the century mark once! And for Mindscape, this is it. There have been holiday messages and bonus episodes and the like. But this is the 100th officially-numbered episode. To celebr...

8 Juni 20201h 33min

99 | Scott Aaronson on Complexity, Computation, and Quantum Gravity

99 | Scott Aaronson on Complexity, Computation, and Quantum Gravity

There are some problems for which it's very hard to find the answer, but very easy to check the answer if someone gives it to you. At least, we think there are such problems; whether or not they reall...

1 Juni 20201h 52min

98 | Olga Khazan on Living and Flourishing While Being Weird

98 | Olga Khazan on Living and Flourishing While Being Weird

Each of us is different, in some way or another, from every other person. But some are more different than others — and the rest of the world never stops letting them know. Societies set up "norms" th...

25 Maj 20201h 1min

97 | John Danaher on Our Coming Automated Utopia

97 | John Danaher on Our Coming Automated Utopia

Humans build machines, in part, to relieve themselves from the burden of work on difficult, repetitive tasks. And yet, despite the fact that machines are everywhere, most of us are still working prett...

18 Maj 20201h 22min

96 | Lina Necib on What and Where the Dark Matter Is

96 | Lina Necib on What and Where the Dark Matter Is

The past few centuries of scientific progress have displaced humanity from the center of it all: the Earth is not at the middle of the Solar System, the Sun is but one star in a large galaxy, there ar...

11 Maj 20201h 21min

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