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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AMA | June 2021

AMA | June 2021

Welcome to the June 2021 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). I take the large number of questi...

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150 | Simon DeDeo on How Explanations Work and Why They Sometimes Fail

150 | Simon DeDeo on How Explanations Work and Why They Sometimes Fail

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149 | Lee Smolin on Time, Philosophy, and the Nature of Reality

149 | Lee Smolin on Time, Philosophy, and the Nature of Reality

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148 | Henry Farrell on Democracy as a Problem-Solving Mechanism

148 | Henry Farrell on Democracy as a Problem-Solving Mechanism

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147 | Rachel Laudan on Cuisine, Culture, and Empire

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For as much as people talk about food, a good case can be made that we don't give it the attention or respect it actually deserves. Food is central to human life, and how we go about the process of cr...

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AMA | May 2021

AMA | May 2021

Welcome to the May 2021 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). I take the large number of questio...

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146 | Emily Riehl on Topology, Categories, and the Future of Mathematics

146 | Emily Riehl on Topology, Categories, and the Future of Mathematics

"A way that math can make the world a better place is by making it a more interesting place to be a conscious being." So says mathematician Emily Riehl near the start of this episode, and it's a good ...

10 Maj 20211h 16min

145 | Niall Ferguson on Histories, Networks, and Catastrophes

145 | Niall Ferguson on Histories, Networks, and Catastrophes

The world has gone through a tough time with the COVID-19 pandemic. Every catastrophic event is unique, but there are certain commonalities to how such crises play out in our modern interconnected wor...

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