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Artwork for The Joy of Why
Artificial Intelligence
Evolutionary Biology
Mathematics
Quantum Computing
Quantum Mechanics
Natural Selection
Birds
Neuroscience
Time
Altruism
Multicellularity
String Theory
Astrobiology
Dark Energy
Black Holes
Depression
Cell Death
Yeast
Error-Correcting Codes
CRISPR

“The Joy of Why” is a Quanta Magazine podcast about curiosity and the pursuit of knowledge. The mathematician and author Steven Strogatz and the cosmologist and author Janna Levin take turns interviewing leading researchers about the great scientific and mathematical questions of our time. New episodes are released every other Wednesday.

Quanta Magazine is a Pulitzer Prize–winning, editorially ind... more

PublishesTwice monthlyEpisodes78Founded5 years ago
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Life SciencesScience

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Artwork for The Joy of Why

Latest Episodes

Black holes are one of the universe’s most exotic and elusive objects. When nothing, not even light, can escape their powerful gravitational grasp, taking a picture of one seems unimaginable. But an image of a black hole, or more accurately its shado... more

People may think of soil as just dirt, but it is anything but inert. Beneath your feet, a vast network of mycorrhizal fungi is hard at work, trading minerals with plant roots. This trading system helps enrich the soil, and it sequesters 13 billion to... more

We know all about how things exist in the three dimensions of length, width, and height. Physicists often talk about time as a fourth dimension, but what if there were a fourth spatial dimension — another direction entirely? How on earth would we pic... more

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Quantum mechanics may be one of the most precisely tested paradigms in science, but there’s still no universally accepted interpretation of what it tells us about reality. How do we get from the wave-like behavior of quantum systems to the solid, mac... more

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Recent Guests

Toby Kiers
Evolutionary biologist at the Free University Amsterdam and MacArthur Fellow
Free University Amsterdam
Episode: How Do Fungi Keep the Planet Healthy?
Maggie Miller
Assistant Professor at the University of Texas at Austin who researches knots, surfaces, and four-dimensional spaces
University of Texas at Austin
Episode: What Does the Fourth Dimension Actually Look Like?
Jonathan Halliwell
Theoretical physicist at Imperial College London
Imperial College London
Episode: Where Does the Quantum World End and Ours Begin?
Akshay Venkatesh
Mathematician, Institute for Advanced Study
Institute for Advanced Study
Episode: Live from ICM 2026: What Is Math For in the Age of AI?
Ravi Vakil
Mathematician, Stanford University
Stanford University
Episode: Live from ICM 2026: What Is Math For in the Age of AI?
Alex Kontorovich
Mathematician, Rutgers University
Rutgers University
Episode: Live from ICM 2026: What Is Math For in the Age of AI?
Melanie Mitchell
Cognitive scientist and computer scientist at Santa Fe Institute
Santa Fe Institute
Episode: Are We Thinking Correctly about AI Intelligence?
Ishmail Abdus-Saboor
Neuroscientist exploring the skin-brain axis, Columbia University Zuckerman Institute
Columbia University
Episode: How Does Touch Lead To Pain Or Pleasure?
Adam Riess
Johns Hopkins astrophysicist and Nobel Prize winner in Physics (2011) for the accelerating expansion of the universe
Johns Hopkins University; Space Telescope Science Institute
Episode: How Fast Is the Universe Really Expanding?

Hosts

Steven Strogatz
Host of The Joy of Why; mathematician with ties to Quanta Magazine and Harvard/Quanta affiliations. Brings a mathematical perspective and a knack for accessible questioning.
Janna Levin
Co-host with a background in cosmology and philosophy of physics; hosts discussions that bridge deep theory with broader implications.

Reviews

4.9 out of 5 stars from 1.9k ratings
  • Racism

    Somehow Eugene Cheng managed to comparisons of different people based on the color of their skin of into a discussion of math. Disgusting and a real stink on this entire channel. If I listen to more, will I get more racism? Talk like this has no place in a science podcast and that lady has absolutely no place teaching children.

    Apple Podcasts
    1
    OSX User 9999
    United States24 days ago
  • What is the target audience?

    I keep wishing I could like this podcast, but I almost always leave an episode disappointed. I’ve got a degree in math, I follow lots of other science podcasts, but most episodes it’s really hard to follow these, especially the ones hosted by Steve Strogatz. It seems like something for a graduate seminar maybe? There’s just very little effort to explain anything in a way that mere mortals could understand.

    Apple Podcasts
    3
    douglasw7
    United Statesa month ago
  • Thoughtful and engaging

    I love how the episodes usually begin and end with a conversation between Janna and Steve. It helps me process the fascinating interview sandwiched between.

    Apple Podcasts
    5
    Showeropera
    United States2 months ago
  • AI

    The biggest issue for AI is they don’t have feelings. I think humans are mostly feeling creatures even though we think we’re thinking creatures. Love the show!

    Apple Podcasts
    5
    MJMJMJMJM12345
    United States2 months ago
  • Misinformation

    The host draws a line between math and science. It is a science, and I would encourage inquisitive minds avoid this podcast.

    Apple Podcasts
    1
    Figgans
    United States2 months ago

Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

Listeners praise the hosts' ability to make dense topics accessible without oversimplifying.
Some episodes are perceived as too technical for casual listeners but rewarding for deep learners.
Guests are consistently high-caliber, with discussions that stay engaging across disciplines.
Audience feedback highlights strong interview dynamics and broad interdisciplinary appeal.
The show is valued for its curiosity-driven approach and thoughtful questioning.

Chart Rankings

How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.

Talking Points

Recent interactions between the hosts and their guests.

How Do Fungi Keep the Planet Healthy?
Q: What does this imply about intelligence or decision-making in organisms without brains?
Fungi process information through their networks and adapt to environments, using signaling and flows rather than centralized brains. This challenges anthropocentric ideas of intelligence and suggests distributed computation and decision-making across a network.
How Do Fungi Keep the Planet Healthy?
Q: How do plants and fungi trade resources, and what experiments reveal this?
Plants discriminate among fungal partners, giving more carbon to those that provide more phosphorus in return. In the lab, we create fungal arenas to test partner choice and observe reciprocal exchange, showing a kind of underground market dynamics.
How Do Fungi Keep the Planet Healthy?
Q: Describe your subject area in broad terms.
I study mycorrhizal fungi, a class of fungi that form intimate partnerships with most plants, acting as a root system and helping with nutrient uptake while receiving carbon from plants in return. This ancient network drives soil health and ecosystem function.
Live from ICM 2026: What Is Math For in the Age of AI?
Q: What is the role of AI in proving or verifying mathematical theorems, and could an AI create a Fermat-like proof from scratch?
There is cautious optimism that AI can contribute to proofs, proofs verification, and new insights, but whether it can generate a fully rigorous, original proof without human knowledge remains an open question; humans still decide what is valuable and how to use AI.
Live from ICM 2026: What Is Math For in the Age of AI?
Q: How do you see the infrastructure around AI and math education changing, particularly for graduate students and trajectories like postdocs?
Panelists suggest a combination of maintaining rigorous human evaluation in admissions and interviews, encouraging productive use of AI as a learning aid rather than a shortcut, and emphasizing understanding and intuition over automated results.

Audience Metrics

Listeners, social reach, demographics and more for this podcast.

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Frequently Asked Questions About The Joy of Why

What is The Joy of Why about and what kind of topics does it cover?

The show blends deep-dive science with accessible conversation across math, physics, biology, and cosmology. Episodes pair seasoned mathematicians with leading researchers to unpack big questions—artificial intelligence, the nature of reality, the biology of touch and pain, cosmic expansion, exomoons, and cutting-edge topics in algebra, CRISPR, and traffic flow. A throughline is curiosity-driven inquiry that balances rigorous explanation with broad context, often highlighting interdisciplinary connections and the limits of current knowledge. Notably, the program frequently features high-profile guests and fosters thoughtful, human-centered discussions that make complex ideas feel relevant to everyday life and future possibilities.

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How many episodes of The Joy of Why are there?

The Joy of Why launched 5 years ago and published 78 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on The Joy of Why?

Recent guests on The Joy of Why include:

1. Toby Kiers
2. Maggie Miller
3. Jonathan Halliwell
4. Akshay Venkatesh
5. Ravi Vakil
6. Alex Kontorovich
7. Melanie Mitchell
8. Ishmail Abdus-Saboor

To view more recent guests and their details, simply upgrade your Rephonic account. You'll also get access to a typical guest profile to help you decide if the show is worth pitching.

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