110 | Neil Johnson on Complexity, Conflict, and Infodemiology

110 | Neil Johnson on Complexity, Conflict, and Infodemiology

Physicists have traditionally simplified systems as much as possible, in order to shed light on fundamental properties. But small, simple parts build up into large, complex wholes. Are there new rules and laws of nature that apply specifically to the realm of complexity? This has been a popular question for a few decades now, and we have some answers but not as many as we would like. Neil Johnson is an expert on complex systems generally, and information networks in particular. We discuss how self-organization can arise from individual units following their own agendas, and how we can mathematically characterize such behavior. Then we talk about information networks in the modern world, including how they have been used to spread disinformation and find recruits for radical fringe groups.

Support Mindscape on Patreon.

Neil Johnson received his Ph.D. in physics from Harvard University. He is currently professor of physics at George Washington University, where he heads an initiative in Complexity and Data Science. In 1999 he presented the annual Christmas Lectures at the Royal Institution in London. He was the recipient of the Burton Award from the American Physical Society in 2018. Among his books are the textbook Financial Market Complexity and the trade book Simply Complexity.

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Bonus | Cuts to Science Funding and Why They Matter

Bonus | Cuts to Science Funding and Why They Matter

The Trump administration, led by Elon Musk and his Department of Government Efficiency, has proposed sweeping cuts to spending on science research here in the US, in particular at the National Institu...

12 Feb 20251h 10min

304 | James Evans on Innovation, Consolidation, and the Science of Science

304 | James Evans on Innovation, Consolidation, and the Science of Science

It is a feature of many human activities - sports, cooking, music, interpersonal relations - that being able to do them well doesn't necessarily mean you can accurately describe how to do them well. S...

10 Feb 20251h 16min

303 | AMA | February 2025

303 | AMA | February 2025

Welcome to the February 2025 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 Pa...

3 Feb 20253h 44min

303 | James P. Allison on Fighting Cancer with the Immune System

303 | James P. Allison on Fighting Cancer with the Immune System

A typical human lifespan is approximately three billion heartbeats in duration. Lasting that long requires not only intrinsic stability, but an impressive capacity for self-repair. Nevertheless, thing...

27 Jan 20251h 7min

302 | Chris Kempes on the Biophysics of Evolution

302 | Chris Kempes on the Biophysics of Evolution

Randomness plays an important role in the evolution of life (as my evil twin will tell you). But random doesn't mean arbitrary. Biological organisms are physical objects, after all, and subject to the...

20 Jan 20251h 30min

301 | Tina Eliassi-Rad on Al, Networks, and Epistemic Instability

301 | Tina Eliassi-Rad on Al, Networks, and Epistemic Instability

Big data is ruling, or at least deeply infiltrating, all of modern existence. Unprecedented capacity for collecting and analyzing large amounts of data have given us a new generation of artificial int...

13 Jan 20251h 9min

300 | Solo: Does Time Exist?

300 | Solo: Does Time Exist?

A new year, and a new centennial -- 300 (regularly-numbered) episodes of Mindscape! Our tradition is to have a solo episode, and what better topic than the nature of time? Physicists and philosophers ...

6 Jan 20252h 11min

Holiday Message | Hits and Misses

Holiday Message | Hits and Misses

It's the end of the year, and time for our annual holiday break here at Mindscape. But as usual, we wrap up with a Holiday Message. This year, inspired by Joni Mitchell's "Hits" and "Misses" albums, I...

23 Dec 20242h 1min

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