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The Joy of Why

Steven Strogatz, Janna Levin and Quanta Magazine

“The Joy of Why” is a Quanta Magazine podcast about curiosity and the pursuit of knowledge. The mathematician and author Steven Strogatz and the astrophysicist 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 Thursday.

Quanta Magazine

“The Joy of Why” is a Quanta Magazine podcast about curiosity and the pursuit of knowledge. The mathematician and author Steven Strogatz and the astrophysicist 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 Thursday.

Quanta Magazine
22hr 53min
Thumbnail for "What Happens in the Brain to Cause Depression?".
The exact cause of depression is unknown, although SSRIs, drugs targeting the neurotransmitter serotonin, have long been prescribed for it. Now the spotlight is turning to other aspects of brain chemistry. In this episode, the neuropharmacologist John Krystal of the Yale School of Medicine shares findings that are revolutionizing depression treatment.
Thumbnail for "Can Psychedelics Improve Mental Health?".
Research suggests that psychedelic drugs can reopen critical periods of brain development to create opportunities for re-learning and psychological healing. In this episode, co-host Janna Levin speaks with Gül Dölen, a neuroscientist studying the therapeutic potential of psychedelic substances.
Thumbnail for "Will Better Superconductors Transform the World?".
Scientists are pursuing materials that can conduct electricity with perfect efficiency under ambient conditions. In this episode, the physicist Siddharth Shanker Saxena tells co-host Janna Levin about what makes this hunt so difficult and consequential.
Thumbnail for "What Does Milk Do for Babies?".
Human nutrition begins with milk, but the wondrous biofluid does much more than feed babies. In this episode, co-host Steven Strogatz speaks with molecular nutritionist Elizabeth Johnson about her research into the lifelong benefits that milk confers through a healthy microbiome.
Thumbnail for "Can Information Escape a Black Hole?".
We often think of black holes as inescapable, but viewed through the lens of quantum information theory, there can be some exceptions. In the 1990s, the theoretical physicist Leonard Susskind struck a bet with Stephen Hawking about whether information can escape a black hole. Co-host Janna Levin speaks with Susskind about this “black hole war” and how the lessons learned about the black hole information paradox have propelled modern physics.
Thumbnail for "How Is Flocking Like Computing?".
Birds flock. Locusts swarm. Fish school. Within chaotic assemblies of life, order somehow emerges. In this episode, co-host Steven Strogatz interviews the evolutionary ecologist Iain Couzin about how and why animals exhibit collective behaviors, and the secret advantages that arise from them.
Thumbnail for "What Is Quantum Teleportation?".
Teleporting people through space is still science fiction. But quantum teleportation is dramatically different and entirely real. In this episode, Janna Levin interviews the theoretical physicist John Preskill about teleporting bits and the promise of quantum technology.
Thumbnail for "What Is the Nature of Time?".
Time is all around us: in the language we use, in the memories we revisit and in our predictions of the future. But what exactly is it? The physicist and Nobel laureate Frank Wilczek joins Steve Strogatz to discuss the fundamental nature of time.
Thumbnail for "How Did Altruism Evolve?".
If evolution favors the "survival of the fittest," where did the impulse to help others come from? Host Janna Levin speaks with Stephanie Preston, a neuropsychologist who studies the biology of altruism.
Thumbnail for "What Makes for ‘Good’ Math?".
Terence Tao, who has been called the “Mozart of Mathematics,” wrote an essay in 2007 about the common ingredients in “good” mathematical research. In this episode, the Fields Medalist joins Steven Strogatz to revisit the topic.
Thumbnail for "Trailer: The Joy of Why Season 3".
In the third season, premiering Feb. 1, Steven Strogatz is joined by his new co-host, author and astrophysicist Janna Levin, for a new round of big questions and surprising answers about math and science.
Thumbnail for "Does Nothingness Exist?".
Even empty space is bubbling with a form of energy, according to quantum mechanics - and that fact affects almost every facet of physical reality. The theoretical physicist Isabel Garcia Garcia explains to Steven Strogatz why it's so important in modern physics to understand what a true vacuum is.
Thumbnail for "Can Math and Physics Save an Arrhythmic Heart?".
Abnormal waves of electrical activity can cause a heart's muscle cells to beat out of sync. In this episode, Flavio Fenton, an expert in cardiac dynamics, talks with Steve Strogatz about ways to treat heart arrhythmias without resorting to painful defibrillators.
Thumbnail for "What Can Jellyfish Teach Us About Fluid Dynamics?".
Jellyfish and other aquatic creatures embody solutions to diverse problems in engineering, medicine and mathematics. John Dabiri, a fluid dynamics expert, talks with Steven Strogatz about what jellyfish can teach us about going with the flow.
Thumbnail for "What Causes Giant Rogue Waves?".
Once dismissed as myths, monstrous rogue waves that tower over ships and appear without warning are real. Wave-science researcher Ton van den Bremer and Steven Strogatz discuss how rogue waves can form in relatively calm seas and whether their threat can be predicted.
Thumbnail for "What Is the Nature of Consciousness?".
Consciousness, our experience of being in the world, is one of the mind's greatest mysteries, but as the neuroscientist Anil Seth explains to Steven Strogatz, research is making progress in understanding this elusive phenomenon.
Thumbnail for "Are There Reasons to Believe in a Multiverse?".
Several areas of physics suggest reasons to think that unobservable universes with different natural laws could lie beyond ours. The theoretical physicist David Kaplan talks with Steven Strogatz about the mysteries that a multiverse would solve.
Thumbnail for "Is Perpetual Motion Possible at the Quantum Level?".
A new state of matter called a "time crystal," recently created on a quantum computing platform, can bend our expectations of thermodynamics. The physicist Vedika Khemani talks with Steven Strogatz about counterintuitive quantum behavior.
Thumbnail for "How Can Some Infinities Be Bigger Than Others?".
All infinities go on forever, so how is it possible for some infinities to be larger than others? The mathematician Justin Moore discusses the mysteries of infinity with Steven Strogatz.
Thumbnail for "What Has the Pandemic Taught Us About Vaccines?".
Should Covid-19 vaccines be judged by how well they prevent disease or how well they prevent death? Anna Durbin, a public health expert and vaccine researcher, talks with Steven Strogatz about the science behind vaccines.
Thumbnail for "Is There Math Beyond the Equal Sign?".
Can mathematics handle things that are essentially the same without being exactly equal? Category theorist Eugenia Cheng and host Steven Strogatz discuss the power and pleasures of abstraction.
Thumbnail for "Can We Program Our Cells?".
Can We Program Our Cells?
Thumbnail for "How Will the Universe End?".
“The Joy of Why” is a podcast about curiosity and the pursuit of knowledge from Quanta Magazine. The acclaimed mathematician and author Steven Strogatz interviews leading researchers about the great scientific and mathematical questions of our time.
Thumbnail for "The Joy of Asking About Infinity, Jellyfish and the End of the Universe".
As The Joy of Why podcast returns for a second season, producer Polly Stryker and host Steven Strogatz invite listeners to join them and their brilliant new guests on another voyage of discovery.
Thumbnail for "Why and How Do We Dream?".
Why and How Do We Dream?
Thumbnail for "What Is Quantum Field Theory and Why Is It Incomplete?".
What Is Quantum Field Theory and Why Is It Incomplete?
Thumbnail for "Why Do We Get Old, and Can Aging Be Reversed?".
Why Do We Get Old, and Can Aging Be Reversed?
Thumbnail for "How Do Mathematicians Know Their Proofs Are Correct?".
How Do Mathematicians Know Their Proofs Are Correct?
Thumbnail for "Can Computers Be Mathematicians?".
Can Computers Be Mathematicians?
Thumbnail for "What Is Life?".
What Is Life?
Thumbnail for "How Could Life Evolve From Cyanide?".
How Could Life Evolve From Cyanide?
Thumbnail for "Will the James Webb Space Telescope Reveal Another Earth?".
Will the James Webb Space Telescope Reveal Another Earth?
Thumbnail for "Where Do Space, Time and Gravity Come From?".
Einstein’s description of curved space-time doesn’t easily mesh with a universe made up of quantum wavefunctions. Theoretical physicist Sean Carroll discusses the quest for quantum gravity with host Steven Strogatz. The post Where Do Space, Time and Gravity Come From? first appeared on Quanta Magazine
Thumbnail for "Why Is Inflammation a Dangerous Necessity?".
Why Is Inflammation a Dangerous Necessity?
Thumbnail for "Untangling Why Knots Are Important".
Steven Strogatz explores the mysteries of knots with the mathematicians Colin Adams and Lisa Piccirillo. The post Untangling Why Knots Are Important first appeared on Quanta Magazine
Thumbnail for "Why Do We Die Without Sleep?".
The reasons why sleep is so vital often hide in unexpected parts of the body, as host Steven Strogatz discovers in conversations with researchers Dragana Rogulja and Alex Keene. The post Why Do We Die Without Sleep? first appeared on Quanta Magazine
Thumbnail for "Trailer: The Joy of Why".
The noted mathematician and author Steven Strogatz explains how the conversations with experts in his new Quanta Magazine podcast address his lifelong fascination with timeless mysteries. The post Deep Curiosity Inspires The Joy of Why Podcast first appeared on Quanta Magazine

What Happens in the Brain to Cause Depression?

Thumbnail for "What Happens in the Brain to Cause Depression?".
May 23, 202433min 23sec

For decades, the best drug therapies for treating depression, like SSRIs, have been based on the idea that depressed brains don’t have enough of the neurotransmitter serotonin. Yet for almost as long, it’s been clear that simplistic theory is wrong. Recent research into the true causes of depression is finding clues in other neurotransmitters and the realization that the brain is much more adaptable than scientists once imagined. Treatments for depression are being reinvented by drugs like ketamine that can help regrow synapses, which can in turn restore the right brain chemistry and improve whole body health.

In this episode, John Krystal, a neuropharmacologist at the Yale School of Medicine, tells Steve Strogatz about the new findings in mental health research that are revolutionizing psychiatric medication.