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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183 | Michael Dine on Supersymmetry, Anthropics, and the Future of Particle Physics

183 | Michael Dine on Supersymmetry, Anthropics, and the Future of Particle Physics

Modern particle physics is a victim of its own success. We have extremely good theories — so good that it's hard to know exactly how to move beyond them, since they agree with all the experiments. Yet...

7 Helmi 20221h 39min

182 | Sally Haslanger on Social Construction and Critical Theory

182 | Sally Haslanger on Social Construction and Critical Theory

Reality is just out there — but how we perceive reality and talk about it depends on choices we human beings make. We decide (consciously or not) to conceptualize the world in certain ways, whether it...

31 Tammi 20221h 37min

181 | Peter Dodds on Quantifying the Shape of Stories

181 | Peter Dodds on Quantifying the Shape of Stories

A good story takes you on an emotional journey, with ups and downs along the way. Thanks to science, we can quantify that. Peter Dodds works on understanding the structure of stories and other strings...

24 Tammi 20221h 16min

180 | Camilla Pang on Instructions for Being Human

180 | Camilla Pang on Instructions for Being Human

Being a human is tricky. There are any number of unwritten rules and social cues that we have to learn as we go, but that we ultimately learn to take for granted. Camilla Pang, who was diagnosed with ...

17 Tammi 20221h 3min

179 | David Reich on Genetics and Ancient Humanity

179 | David Reich on Genetics and Ancient Humanity

Human beings like to divide themselves into groups, and then cooperate, socialize, and reproduce with members of their own group. But they're not very absolutist about it; groups tend to gradually (or...

10 Tammi 20221h 13min

178 | Jody Azzouni on What Is and Isn't Real

178 | Jody Azzouni on What Is and Isn't Real

Are numbers real? What does that even mean? You can't kick a number. But you can talk about numbers in useful ways, and we use numbers to talk about the real world. There's surely a kind of reality th...

3 Tammi 20221h 14min

Holiday Message 2021 | On Disciplines & Cocktails

Holiday Message 2021 | On Disciplines & Cocktails

As each December comes to a close, we wrap up another year of podcasts with the Mindscape Holiday Message. Nothing too profound, just some thoughts that wouldn't fit easily into a regular podcast. Thi...

20 Joulu 202159min

AMA | December 2021

AMA | December 2021

Welcome to the December 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 qu...

15 Joulu 20213h 37min

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