Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas15 Loka 2018

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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251 | Rosemary Braun on Uncovering Patterns in Biological Complexity

Biological organisms are paradigmatic emergent systems. That atoms of which they are made mindlessly obey the local laws of physics; even cells and organs do their individual jobs without explicitly u...

25 Syys 20231h 11min

250 | Brendan Nyhan on Navigating the Information Ecosystem

The modern world inundates us with both information and misinformation. What are the forces that conspire to make misinformation so prevalent? Can we combat the flow of misinformation, perhaps by lega...

18 Syys 202357min

249 | Peter Godfrey-Smith on Sentience and Octopus Minds

The study of cognition and sentience would be greatly abetted by the discovery of intelligent alien beings, who presumably developed independently of life here on Earth. But we do have more than one d...

11 Syys 20231h 28min

AMA | September 2023

Welcome to the September 2023 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by P...

4 Syys 20234h 3min

248 | Yejin Choi on AI and Common Sense

Over the last year, AI large-language models (LLMs) like ChatGPT have demonstrated a remarkable ability to carry on human-like conversations in a variety of different concepts. But the way these LLMs ...

28 Elo 20231h 12min

247 | Samuel Bowles on Economics, Cooperation, and Inequality

Blog post with transcript: https://www.preposterousuniverse.com/podcast/2023/08/21/247-samuel-bowles-on-economics-cooperation-and-inequality/ Economics, much like thermodynamics, is a story of collect...

21 Elo 20231h 20min

246 | David Stuart on Time and Science in Maya Civilization

You might remember the somewhat bizarre worries that swept through certain circles back in 2012, based on the end of the world being predicted by the Maya calendar. The world didn't end, which is unsu...

14 Elo 20231h 9min

AMA | August 2023

Welcome to the August 2023 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Patr...

7 Elo 20233h 38min