What's Your Problem?

Kevin Murach is a professor who studies muscle cells at the University of Missouri. Kevin's problem is this: Can we understand what's going on in our cells when we lift weights – and can we use that knowledge to help people stay healthier as they age?

In this episode, Kevin explains: 

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Throughout the next few weeks, every Monday we'll be sharing some of our favorite episodes from Jacob's other show Business History. We hope you enjoy them and if you want to hear more, subscriber to Business History on Apple, Spotify or wherever you get your podcasts.

With the news of Warren Buffett stepping down as chairman of Berkshire Hathaway, we are revisiting an episode from our two-part series on Buffet.

Warren Buffett rose from obscurity to become the richest person in the world - and he did it in a unique way. As a boy in Omaha he collected information obsessively - writing down car license numbers and hoarding bottle caps. As a young man, Buffett turned his focus on scouring business accounts to find companies that had hidden value no one else could spot.

We tell the story of young Warren Buffett as he quietly worked building up the expertise and accumulating the wealth that would allow him to become the most famous investor of our age.

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Circadian rhythm isn’t just controlled by your brain. Every cell in your body runs on a 24-hour cycle, including your muscle cells. 

Karyn Esser is the chair of the department of physiology and aging at the University of Florida, and she’s a leading expert on circadian rhythm in muscle cells. Karyn's problem is this: How does the circadian rhythm in muscle cells change as we age, and how does exercise help keep our system in sync?

In this episode, Karyn explains: 

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Throughout the next few weeks, every Monday we'll be sharing some of our favorite episodes from Jacob's other show Business History. We hope you enjoy them and if you want to hear more, subscriber to Business History on Apple, Spotify or wherever you get your podcasts.

William Shockley was an electronics genius - he even won a Nobel Prize - but he was an awful boss. Shockley was a cruel, paranoid micromanager. And this annoyed the staff of brilliant young engineers he'd assembled in a quiet town in Northern California. In fact, they quit and set up a company of their own inventing silicon chips. 

Robert Noyce, Gordon Moore and the rest of "The Traitorous Eight" transformed computing, but also blazed a trail for the tech founders who would flock to Silicon Valley and change the world. Members of "The Traitorous Eight" set up Intel and AMD, while also funding businesses such as Google and Slack. 

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Note: Today’s show is sponsored by PayPal.

Kartik Hosanagar is a professor at the Wharton School. The problems he studies include: What will it take for people to trust AI agents to buy stuff for them? And how should businesses prepare for a world where their customers include AI agents?

In this episode, Kartik explains:

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Jason Ballard is the co-founder and CEO of ICON. Jason's problem is this: Can you use 3-D printing to build houses that are cheaper, better and more interesting than the houses we build now?

In this episode, Jason explains: 

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Celebrated novelists, countless students and at least one billionaire have recently been accused of using AI in their writing. The most commonly cited AI detector in these cases is called Pangram. 

Max Spero is the co-founder and CEO of Pangram. His problem is this: Can you build tools that reliably detect AI-generated text and images? And a few years from now, will anybody care?

In this episode, Max explains: 

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I'm here with a preview of Blockers, a new audiobook from Michael Lewis, the author of Liars Poker, Moneyball, The Big Short and more. In Blockers, Lewis tells the story of a handful of people who dedicated their careers to public service—until the Department of Government Efficiency decided they were a problem. These were people who believed they had a calling—people who kept American's sensitive tax data out of the wrong hands, made sure that politicians and civil servants played by the rules, and figured out how to stop wildfires from destroying suburban neighborhoods—and then discovered they were no longer wanted.

Here's an excerpt from the audiobook. You can buy the audiobook exclusively at blockers.fm. 

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We’ve all heard that nothing ever gets deleted from the internet. Luke Arrigoni says that just isn’t true. His company deletes thousands of deepfakes every day.

Luke is the founder and CEO of Loti, and his problem is this: How do you turn the Internet into a place where people have more control over their name, image and likeness?

Tens of thousands of famous people pay Loti to scour the internet and take down deepfakes and unapproved endorsements. But in Luke's telling, this is just the beginning. The company will soon allow celebrities to license their likeness for use in AI videos, and it also plans to start offering its services to ordinary people. 

In this episode, Luke explains: 

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Before 1450, books were written out by hand. It was slow and expensive. But Johannes Gutenberg borrowed a ton of money to create a printing press that could crank out Bibles and pamphlets and documents in huge numbers. Science, politics and philosophy were all up-ended. 

For example, the Catholic Church seized on the invention to sell special certificates absolving people of their sins – a move that made money, but caused a permanent schism in Christianity.   

And Gutenberg too found himself in trouble – when a financier sued the inventor to reclaim his loan, plus interest. 

Enjoy this episode from Business History, another Pushkin podcast. 

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Everybody’s worried about the risks of AI. So we called up one of the most insightful writers we know on the subject: Zvi Mowshowitz. Zvi writes about AI and AI risks at his substack, Don’t Worry About the Vase. Zvi’s problem is this: How do we prevent artificial intelligence from killing everyone? 

In this episode, Zvi explains: 

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On this bonus episode of What’s Your Problem, Jacob talks to Christine Chase, a Vice President, Financial Consultant at Fidelity Investments. Christine’s problem is this: How do you help clients build a plan to achieve their financial goals? Today’s show is sponsored by Fidelity Investments.

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The fish we eat usually die slowly, suffocating after they’re pulled out of the water. Saif Khawaja is the co-founder and CEO of a company called Shinkei. Saif's problem is this: Can he build a machine to efficiently kill fish in a way that is more humane?

In this episode, Saif explains: 

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Catherine Nakalembe is an assistant professor at the University of Maryland and the head of the Africa program at NASA Harvest, which uses satellite images to track agriculture around the world. Catherine’s problem is this: How do you predict when a famine is coming – and how do you convince leaders to act in time?

In this episode, Catherine explains: 

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When Dr. Lara Jehi began treating epilepsy patients in the 2000s, critical surgical decisions were driven more by clinician intuition and expertise than data. Today, she is a leader of IBM and Cleveland Clinic’s Discovery Accelerator, using advanced AI and quantum computing to transform how researchers analyze data, simulate molecules, accelerate drug discovery, and develop more precise treatments. Malcolm Gladwell talks with Dr. Jehi about how quantum computing is changing biomedical research, and what these breakthroughs could mean for the future of healthcare and life sciences.

This is a paid advertisement from IBM. The conversations on this podcast don't necessarily represent IBM's positions, strategies or opinions.

Visit us at https://www.ibm.com/think/podcasts/smart-talks

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Nir Barzilai is a physician and a researcher at the Albert Einstein College of Medicine in New York, where he runs the Institute for Geroscience. Nir’s problem is this: How can we use lifestyle changes and drugs to slow the process of aging?

In this episode, Nir explains: 

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Helen Pearson is the author of the book “Beyond Belief: How Evidence Shows What Really Works.” Helen's problem is this: How do you get people to make important decisions based on high-quality evidence, instead of on hunches or habits?

In this episode, Helen explains: 

Check out Helen’s book here. 

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In 2016, Geoffrey Hinton, one of the inventors of modern AI, predicted that AI would replace radiologists within years. Ten years later, we have a shortage of radiologists. AI has yet to revolutionize the field. What happened, and what does the story of AI and radiology tell us about AI and the future of work?

Saurabh Jha is a radiologist at the University of Pennsylvania. He's written about how he uses AI in his practice, and why radiologists have been slow to adopt AI. Saurabh has also traveled to India and Nepal to understand the very different ways AI is being adopted for radiology in the developing world.

In this episode, Saurabh explains: 

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After spending decades as marginal players in the global auto industry, Chinese carmakers have become the world’s biggest exporters of cars. Chinese cars are some of the best cars on the planet, and they’re available almost everywhere – except in the US.

Michael Dunne is the CEO of Dunne Insights, a company that consults on the future of cars. Michael has been working with the Chinese auto industry since 1990. I talked with Michael about how China did it. The problem we discussed was: How can the United States catch up with the Chinese auto industry?

In this episode, Michael explains: 

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Phages are viruses that attack bacteria. People have been using phages to treat infections for over a hundred years, but in most cases they just don't work as well as antibiotics. 

Paul Garofolo is the co-founder and CEO of Locus Biosciences. His problem is this: How do you genetically engineer phages to be more effective at curing disease? 

In this episode, Paul explains: 

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David Autor is a labor economist at MIT. He has written about how the arrival of personal computers increased inequality among American workers. But when it comes to AI, David thinks there could be a different outcome. 

Read David’s article about AI in Noema Magazine. 

In this episode, David explains: 

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John Mills is the CEO and co-founder of a nonprofit called Watch Duty. His problem is this: How do you build an app to warn people when they are in immediate danger from a natural disaster? Watch Duty has millions of users and played a key role in the Los Angeles fires of 2025. In the show, John talks about how he built his app with the help of an army of volunteers, and why the government hadn’t already built something like Watch Duty.

In this episode, John explains: 

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Josh Tyrangiel is the author of “AI for Good: How Real People Are Using Artificial Intelligence to Fix Things That Matter.” On today’s show, Josh talks about some of these real people and the problems they’re working on: a professor trying to understand her nonverbal son, a general who delivered millions of Covid vaccines in 2021, and a hospital CEO trying to reduce the rate of deadly infections. 

In this episode, Josh explains: 

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Betsey Stevenson is a labor economist at the University of Michigan, and she was an economic adviser to President Obama. Betsey’s problem is this: How can we create a world where the benefits of AI are broadly shared?

Betsey draws on history – including how the invention of household appliances created a crisis of meaning for American women – to understand how we should respond to the challenge of AI. And she suggests policies to help spread the wealth AI could bring.

In this episode, Betsey explains: 

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Maps have gotten much better over the past few decades. But they're still mostly two dimensional, and they struggle to keep up with a world that is always changing. Brian McClendon is the Chief Technology Officer of Niantic Spatial, a spinout of the company that makes Pokémon Go. Brian's problem is this: How do you build a three-dimensional map of the world that both robots and humans can use to find their way?

In this episode, Brian explains: 

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Dan Shipper is the co-founder and CEO of Every, a company that publishes newsletters about AI, develops AI-related software, and helps other companies use AI. Dan has two problems. One, how do you build a company where almost everybody has their own AI agent? And two, how do you use AI as a tool to improve your writing, rather than as a replacement for writing?

In this episode, Dan explains: 

Check out Every at their website: https://every.to/

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The apples you can buy at the grocery store have gotten profoundly better over the past few decades. It’s a kind of everyday, hiding-in-plain sight innovation. Kate Evans is an apple breeder and professor at Washington State University. Kate's problem is this: How do you invent a better apple?

With her team, Kate has in fact invented a new kind of apple called the Sunflare. It’s arriving in stores in a few years. She also helped to invent the Cosmic Crisp, which is out already.

In this episode, Kate explains: 

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Rob Meyerson is the co-founder and CEO of Interlune. Rob's problem is this: How do you help build an economy on the moon? Eventually, Rob hopes Interlune will help build a moon base. For now, he is focused on bringing a gas called helium-3 back from the moon to sell on earth. 

Earlier in his career, Rob was the president of Blue Origin, the rocket company founded by Jeff Bezos.

In this episode, Rob explains: 

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Aaron Edsinger left his job as director of robotics at Google to start a company called Hello Robot. Aaron’s problem is this: How do you build an affordable robot that people can use to solve real problems at home? The result is a robot that looks nothing like a person. In fact, it’s closer to a Roomba with an arm.

In this episode, Aaron explains: 

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Ben Christensen is the co-founder and CEO of Cambium, the largest seller of salvaged wood in America. Ben's problem is this: How can we turn the trees that are falling to the ground all around us, into usable wood?

In this episode, Ben explains: 

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Investors are pouring billions of dollars into nuclear fusion companies. The dream: transform human civilization (and power AI data centers) by providing cheap, abundant energy. But nobody’s figured out how to make it work yet.

What will it take to make fusion work at scale – and how will the world be different if it does? To answer this question, Jacob recently hosted a conversation at SXSW between Greg Piefer of SHINE Technologies, Melanie Windridge of Fusion Energy Insights, and Luke Ward of investment firm Baillie Gifford. 

In this episode, the guests explain: 

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Mark Barrocas is the CEO of SharkNinja, a company that sells everything from vacuums, to blenders, to beauty products. Mark’s problem is this: How do you invent new products that people want to rave about on social media? 

In this episode, Mark explains: 

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Michael Hufford is the co-founder and CEO of LyGenesis, a company working on a new treatment for end stage liver disease. Michael’s problem is this: How do grow a new liver inside the body of a sick patient?

In this episode, Michael explains: 

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Rare earth elements are inside pretty much everything with an on-off switch: Phones, laptops, cars. Even missiles. And China controls the world’s supply of components made from rare earths.

David Abraham is the author of the book “The Elements of Power: Gadgets, Guns, and the Struggle for a Sustainable Future in the Rare Metal Age.” David’s problem is this: What should the US do about China's chokehold on the rare earth supply chain?

According to Abraham, the current US strategy could wind up costing billions of dollars without solving the problem. And he has a big idea for what we should do instead.

In this episode, David explains:

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Ben Bloom is the co-founder and CEO of Atom Computing, a company building quantum computers out of individual atoms. Ben’s problem is this: How do you build a quantum computer that is actually useful for everything from discovering new medicines to building better batteries? 

In this episode, Ben explains: 

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Jonny Dyer is the founder and CEO of a satellite company called Muon Space. The company’s first big project is a satellite constellation called FireSat.

Jonny’s problem is this: How do you capture data from space to help manage wildfires around the world in near-real time? 

In this episode, Jonny explains:

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After bacteria were discovered, it took scientists 200 years to figure out that they cause disease. If scientists had made the link sooner, hundreds of millions of lives could have been saved. 

In his recent book So Very Small, Tom Levenson, a professor of science writing at MIT, tells the amazing story of germ theory, and argues that our worldview can prevent us from seeing what is right in front of us – even when lives are at stake.

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Evan Ratliff co-founded a publishing startup in 2011. Now he hosts a podcast called Shell Game. In the latest season of the show, Evan creates a company run by AI agents. The project is absurdly funny – Evan calls it an office satire – but it also illuminates the power and limits of AI agents.

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Patrick Hsu is the co-founder of Arc Institute, which is integrating AI models and biological research. Patrick’s problem is this: How can you use AI to make biological research more efficient – and ultimately to find cures for Alzheimer’s and other complex diseases?

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In recent decades, medical research has fundamentally changed how we think about heart disease. This fresh understanding has opened up new ways to prevent heart attacks. Eric Topol is a cardiologist and the founder of the Scripps Research Translational Institute in San Diego. Eric’s problem is this: How can doctors use recent technological developments to do a better job at preventing heart attacks?

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Samir Ibrahim is the co-founder and CEO of SunCulture. When he started the company, he thought he was solving a simple problem: How do you sell solar-powered pumps to help poor farmers irrigate their land? It turned out, he was working on something much bigger: How do you help poor farmers get richer, and create a giant new market from scratch?

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Nabiha Saklayen is the co-founder and CEO of Cellino. Nabiha’s problem is this: How can you make personalized stem cell therapies quickly and cheaply?

Induced pluripotent stem cells, or IPSCs, have shown tremendous promise as treatments for illnesses like Parkinson’s, leukemia, and heart disease.

On today’s show, Nabiha explains why IPSC manufacturing is still mostly done by hand, how her background in physics and lasers led her into biology, and what it takes to try and build tiny, automated cell factories.

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Tim Bucher is a farmer, and the founder and CEO of Agtonomy. Tim's problem is this: How do you build an autonomous tractor that can work for specialty crops like grapes, olives, apples, and almonds? 

On today’s show, Tim explains what makes certain farming processes so difficult to automate, and how autonomy may soon change how we eat.

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Mitch Lee is the co-founder and CEO of Arc Boats. Mitch's problem is this: How do you build competitively priced electric boats?

On today’s show, Mitch explains why water makes electrification so hard, the techno-economic puzzle of building giant battery packs, and how Arc’s high-end wake sport boat opened the door for a new generation of hybrid-electric tugboats.

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Nina Mohanty is the founder and CEO of Bloom Money. Nina’s problem is this: How do you build an app to help immigrants manage their money?

On today’s show, Nina talks about bringing a saving and lending practice into the 21st century, navigating regulators who’ve never seen anything like it, and what global traditions can teach us about the future of money.

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What's Your Problem? host Jacob Goldstein has a new show: Business History.

How did Hitler’s favorite car become synonymous with hippies? What got Thomas Edison tangled up with the electric chair? Did someone murder the guy who invented the movies? On Business History, Jacob and fellow former Planet Money host Robert Smith examine the surprising stories of businesses big and small and find out what you can learn from those who founded them.

In this episode: The inventor that transformed America and the world. Thomas Alva Edison registered over one thousand patents before he died in 1931—and we can thank him for advances in electric power, communications technology, music recording and even the movies. But his biggest breakthrough doesn't get nearly enough attention. In many ways, Edison invented modern inventing. Jacob and Robert they trace the life story of a scrappy young boy with bad hearing who almost singlehandedly invented R&D. This is the first of a three part series on Edison—if you want to hear the full series, ad-free, right now, join Pushkin+ on the Business History show page on Apple Podcasts or at pushkin.fm/plus.

Find Business History (00:10) on Apple Podcasts, Spotify, YouTube, or wherever you get podcasts.

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Mike Blue is the CEO of HistoSonics. The company recently developed a device that uses ultrasound to destroy tumors.

On today’s show, Mike talks about how a garage-built prototype became an FDA-approved machine; changing the company’s story after a failed clinical trial; and why he loves being a salesman but hates most sales pitches.

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Chris Urmson is the co-founder and CEO of Aurora, a company trying to bring autonomous driving to commercial trucking.

Chris led a team at the 2004 DARPA challenge that launched the autonomous vehicle industry. Then he held a senior role at Google’s self-driving car project, which later became Waymo.

On the show today, he talks about the long arc of autonomous driving, why he left Google, and the future of autonomous trucking.

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Michael Porter is the Chief Technology Officer of OceanWell.

Michael's problem is this: How can you desalinate water at the bottom of the ocean – and deliver it to land at a cost that’s competitive with other sources of fresh water?

On today’s show, Michael explains how he built OceanWell’s prototype in his kitchen, what it takes to make a system that’s less disruptive to marine life, and why innovations from the oil and gas industry are making his work possible.

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Justin Lopas is the COO and co-founder of Base Power, a battery and power company based in Texas.

Justin’s problem is this: How can you deliver more energy to more people without having to build so much more grid?

On today’s show, Justin explains why the grid needs a major upgrade, and how putting batteries next to homes could help. Also: what Texas’ embrace of renewable energy could mean for the future of power in the U.S.

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Fletcher Wilson is the CEO and co-founder of Throne Labs.

Fletcher’s problem is this: How can you create public toilets that people actually want to use?

On today’s show, Fletcher explains how his company is trying to make public bathrooms cleaner, safer and more accessible. The conversation also points to a bigger idea: why it’s so hard for cities to build and maintain pretty much anything.

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Boris Sofman is the co-founder and CEO of Bedrock Robotics.

Boris' problem is this: How do you teach machines not just to drive, but also to work: to grade roads, move heavy objects and dig big holes at construction sites.

On today’s show, Boris talks about how his work at Waymo led him to found Bedrock, and he explains how autonomous construction equipment could help unleash an American building boom.

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Justin Kolbeck is the co-founder and CEO of Wildtype, a company making seafood without killing fish.

Their first product is cultivated salmon, which is made from real salmon cells that are grown in a stainless steel vat.

Justin's problem is this: How to sell no-kill, vat-grown salmon for the same price, or better, as wild-caught salmon? On today’s show, Justin explains how Wildtype will scale, what’s going on across the cultivated and plant-based meat industries, and how new state bans on cultivated foods are shaping the future of his business.

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Ed Conway is an economics journalist and author of the book “Material World: The Six Raw Materials that Shape Modern Civilization.”

On today’s show, Ed reveals how three of those often-overlooked materials—iron, copper, and sand—shaped human advancement from the Renaissance to the Industrial Revolution to the digital age. And he talks about what they mean for our future.

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Shashank Samala is the CEO and co-founder of Heirloom, a carbon capture start-up.

His problem is this: Can you use crushed up rocks to permanently suck carbon out of the atmosphere? And can you do it cheaply enough to have a global impact?

On today’s show, Shashank explains why he believes rocks could be the backbone of carbon capture, how his childhood in India shaped his outlook on climate change, and how government policy is shaping today’s direct air capture industry.

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Aaron Parness is a director of applied science at Amazon Robotics.

His problem is this: How do you build a robot that can put stuff on shelves.

Today on the show, Aaron explains why this is a surprisingly hard problem – and why the solution Aaron’s team came up with may ultimately have uses beyond the warehouse.

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In many places on Earth, there’s steam just below the surface. We don’t know where those places are — but if we could figure it out, we could unlock a lot of clean energy.

Carl Hoiland is the co-founder and CEO of Zanskar, a geothermal energy company.

On today’s show, Carl makes the case for geothermal in the energy transition and explains how the company is developing new ways to identify exactly where to dig a geothermal well.

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Dr. Stephen Waxman is a professor of neurology, neuroscience and pharmacology at Yale. His research on pain helped pave the way for a newly approved, non-addictive pain drug called suzetrigine.

On today’s show, he explains why he thinks suzetrigine is a promising step, but why much more work is needed to develop better pain drugs. He also gets into his work on ion channels—critical to unlocking the pain puzzle— and a rare condition known as Man on Fire syndrome.

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Philipp Kandal is the chief product officer of Grab, an app that serves several countries across Southeast Asia. Two of Grab’s main businesses are delivery and mobility – like a combination between Instacart and Uber. And maps are at the core of its business.

On today’s show, Philipp talks about improving online maps for places like Southeast Asia, where streets are often winding, narrow, and harder to access than those in the US and other developed countries.

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Dr. Allan Doctor is the co-founder and chief scientific officer at Kalocyte, a company that is developing dried red blood cells that can be rehydrated and used in medical emergencies.

On today’s show, Dr. Doctor explains the complex science behind artificial blood, and how this innovation could help save millions of lives.

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Jakob Uszkoreit is the CEO and co-founder of Inceptive, a biotech start-up. He’s also a co-author of “Attention is All You Need,” the paper that created transformer models. Today, transformers power chatbots like ChatGPT and Claude. They’ve also led to breakthroughs in everything from generating images to predicting the structure of proteins.

On today’s show, Jakob talks about the invention of transformer models. And he discusses how he’s using those models to try to invent new kinds of medicine, with a particular focus on RNA.

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Nan Ransohoff is the head of climate at Stripe. The company is known mainly for facilitating online payments, but it’s become a key driver of the nascent carbon-removal industry.

On today’s show, Nan explains how she used a clever economic idea to get companies to spend $1 billion on carbon removal. And she talks about the different approaches startups are pursuing to pull carbon dioxide out of the atmosphere.

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Megan O’Connor is the co-founder and CEO of Nth Cycle. Megan’s problem is this: How do you create a new system that can both refine the raw metals we need for new batteries and recycle metal from old batteries?

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Getting energy from nuclear fusion has been a dream for decades; it would be cheap, abundant, and safer than today’s nuclear fission reactors. Billions of dollars have flowed into fusion startups in recent years, but reliable, economic fusion power may still be decades away.

Greg Piefer is the founder of a fusion company called Shine, where he’s pursuing a different path. Rather than go straight to fusion as a source of energy, he’s using fusion to pursue more profitable markets right now – with the hope that what he learns today will eventually help lead to cheap, abundant fusion energy.

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Recycling plants take in a huge amount of random (and occasionally hazardous) stuff, which they then have to turn into reliable outputs that their customers will buy. That’s why Rebecca Hu Thrams calls recycling “the most demented form of manufacturing on the planet.” Rebecca is the co-founder of Glacier, and her problem is this: Can you use AI and robots to make recycling a somewhat less demented business?

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AI might be the most consequential advancement in the world right now. But – astonishingly – no one fully understands what’s going on inside AI models. Josh Batson is a research scientist at Anthropic, the AI company behind Claude, one of the world’s leading language models. Josh’s problem is this: How do we learn how AI works?

Get early, ad-free access to episodes of What's Your Problem? by subscribing to Pushkin+ on Apple Podcasts or Pushkin.fm. Pushkin+ subscribers can access ad-free episodes, full audiobooks, exclusive binges, and bonus content for all Pushkin shows.

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AI is better than humans at a lot of things, but physical tasks – even seemingly simple ones like folding a shirt – routinely stump AI-powered robots. Chelsea Finn is a professor at Stanford and the co-founder of Physical Intelligence. Chelsea's problem is this: Can you build an AI model that can teach any robot to do any task, anywhere?

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Jacob Glanville is the founder and CEO of Centivax. Jacob’s problem is this: Can you create a vaccine that protects people against almost all strains of flu – even strains that haven’t evolved yet?

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Alex Wiltschko got obsessed with perfume when he was 12 years old. He grew up to be an AI researcher at Google. Then he started Osmo, a company that fused his job at Google with his childhood obsession: Osmo is using AI to teach computers to smell.

The company is getting into the perfume business, and it plans eventually to use scent to diagnose disease and detect security risks.

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Nick Jacobson and his team at Dartmouth medical school spent over 100,000 hours trying to build an AI chatbot that can serve as a safe, effective therapist. After a few false starts, they seem to be on to something.

Note: This episode contains references to self harm.

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This week, Nate and Maria discuss AI 2027, a new report from the AI Futures Project that lays out some pretty doom-y scenarios for our near-term AI future. They talk about how likely humans are to be misled by rogue AI, and whether current conflicts between the US and China will affect the way this all unfolds. Plus, Nate talks about the feedback he gave the AI 2027 writers after reading an early draft of their forecast, and reveals what he sees as the report’s central flaw.

Enjoy this episode from Risky Business, another Pushkin podcast.

The AI Futures Project’s AI 2027 scenario: https://ai-2027.com/

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Blake Scholl is the founder and CEO of Boom Supersonic. Blake's problem is this: Can you build a commercial airplane that flies faster than the speed of sound – and that makes economic sense?

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Fiorenzo Omenetto is a professor of biomedical engineering at Tufts University and the director of Silklab. Fiorenzo's problem is this: How do you turn a material people have been using for thousands of years into useful, cutting edge tools that improve everything from vaccine delivery to food waste?

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A few years ago, a ransomware gang called LockBit rose from obscurity to extort over $100 million from organizations around the world. A security strategist named Jon DiMaggio wanted to understand how the organization worked. So he used the techniques of World War II-era spycraft to make contact with the hackers.

On today’s show, Jon tells the story of LockBit – from the way it borrowed techniques from mainstream companies to market itself and attract talent, to the response from international governments that used the gang’s own tactics against it. And he talks about how he got the hackers to talk to him.

Jon described the rise and fall of the company in a series of posts he called the Ransomware Diaries. You can read those here: https://analyst1.com/ransomware-diaries-volume-1/

Note: This bonus episode of What’s Your Problem? is sponsored by Microsoft.

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Christopher Kirchhoff helped launch a Defense Department office that aimed to bring Silicon Valley technology to the US military. Christopher’s problem is this: How can the giant bureaucracy that is the US military keep up with technological change?

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Jared Baeten is senior vice president in virology at Gilead Sciences. Jared's problem is this: In a world without a vaccine, how do you make a medicine that people will actually take to help prevent HIV?

There’s already a daily pill that reduces the risk of getting HIV, but a majority of people who are at high risk are unwilling or unable to take it.

So Jared and his colleagues are developing a new drug, lenacapivir, designed to be given as a shot once every six months.

Note: The views and opinions expressed in this episode are those of the guest and do not necessarily reflect the views or positions of any entities they represent.

Get early, ad-free access to episodes of What's Your Problem? by subscribing to Pushkin+ on Apple Podcasts or Pushkin.fm. Pushkin+ subscribers can access ad-free episodes, full audiobooks, exclusive binges, and bonus content for all Pushkin shows.

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Carlos Araque is the co-founder and CEO of Quaise Energy. Carlos' problem is this: How do you make drilling for geothermal energy as routine, widespread, and profitable as drilling for oil or gas? The answer involves digging deeper into the Earth than anyone has ever dug before.

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Ben Rapoport is the co-founder and CSO of Precision Neuroscience. Ben's problem is this: Can you build a device that allows a paralyzed person to use a computer with only their thoughts – without damaging their brain?

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Jeff Cardenas is the co-founder and CEO of Apptronik. Jeff's problem is this: Can you make a safe, reliable humanoid robot – for less than $50,000?

In the short term, Apptronik’s robots will work in factories. But Jeff’s long-term goal – based on the experience of his own grandparents – is to build robots that can help care for the elderly.

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We need better, cheaper ways to store solar and wind energy when it’s dark out and the wind isn’t blowing.

One option: Compressing air in underground caverns when energy is abundant, then blowing it back out to create energy when you need it. It’s an old idea, but it has some fundamental problems.

Curtis VanWalleghem, the co-founder and CEO of Hydrostor, thinks his company has solved those problems with a new approach. If he’s right, his firm will help fix the biggest bottleneck slowing down the adoption of solar and wind power.

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There are moments in history when people make huge technological advances all of a sudden. Think of the Manhattan Project, the Apollo missions, or, more recently, generative AI. But what do these moments have in common? Is there some set of conditions that lead to massive technological leaps?

Byrne Hobart is the author of a finance newsletter called The Diff, and the co-author of Boom: Bubbles and the End of Stagnation. In the book, Bryne makes the case for one thing that is really helpful if you want to make a wild technological leap: a bubble.

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AI works well in the virtual world. That’s partly because the internet provides so much data to train AI models. But there’s no analogous data set for the physical world – and as a result, AI doesn’t work as well there… yet.

Edward Mehr is the co-founder and CEO of Machina Labs. Edward's problem is this: How can you use AI to turn robots from dumb, inflexible machines into skilled, versatile craftsmen?

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In the past few years, NVIDIA has become one of the most valuable and important companies in the world by making GPUs, the chips powering the AI boom. But where did the company come from, and why are NVIDIA chips the ones that dominate AI?

Tae Kim is the author of a new book called The Nvidia Way. In his book, he tells the story of how NVIDIA’s founder and CEO, Jensen Huang, set NVIDIA on the path to becoming what it is today.

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Claude Shannon is a major figure in the history of technology. Known as the father of information theory, Shannon spent decades at Bell Labs and MIT. But what exactly did Claude Shannon figure out, and why is it so important?

To answer that question, Jacob talked with David Tse, a professor of electrical engineering at Stanford who studied under one of Shannon’s students, and who teaches Shannon to his own students today. David used Shannon's work to make a breakthrough in wireless communication that underpins every phone call we make today.

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We thought we knew everything there was to know about measles. But in recent years, new research has revealed that the virus attacks the immune system and creates effects far more dramatic than a rash and fever. For this episode we’re joined by Michael Mina, a former Harvard epidemiologist now at eMed, who helped discover how measles was causing “immune amnesia.” Our second guest is Stephen Russell, a former Mayo Clinic researcher who co-founded a company called Vyriad. Russell is trying to use the measles virus to treat cancer. Enjoy this episode from Incubation, another Pushkin podcast.

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What really drove the 2008 financial crash? What’s a shadow bank? And what’s the connection between NIMBYs and BANANAs? Tim Harford and Jacob Goldstein answer more of your questions. Enjoy this episode from Cautionary Tales, another Pushkin Podcast.

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Solar power and batteries are becoming cheap and ubiquitous. Great. But there are problems batteries can’t solve – like fueling ships and planes. One way to solve those problems: Use solar power to create hydrogen, and turn that hydrogen into fuel.

Today’s guest is Raffi Garabedian, the co-founder and CEO of Electric Hydrogen. Raffi’s problem is this: How do you turn solar and wind energy into clean hydrogen that’s cheap enough to compete with fossil fuel?

This is the last of three episodes we’re doing about the solar-power revolution. Listen to the previous episodes on your podcast player or at our website: https://www.pushkin.fm/podcasts/whats-your-problem

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This is the second of three episodes about the solar-power revolution. Last week, we talked about how solar power got so cheap. This week, we’re talking with someone who is building giant plants around the world to take advantage of all that cheap, intermittent energy.

John O'Donnell is the co-founder of Rondo Energy. John’s problem is this: How do you turn intermittent energy into the cheap, reliable, intense heat that companies around the world need to make everything from steel beams to t-shirts?

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In the past 20 years, the price of solar panels has fallen by more than 97 percent. This extraordinary decline is good news for the world – and it’s transforming the way energy is produced and consumed.

For the next few episodes, we’ll be talking to people who are in the middle of this solar power revolution to find out how it happened, and what it will mean for the world.

Today, Jenny Chase, the author of Solar Power Finance Without the Jargon, tells the story of how solar power got so cheap and where it’s exploding today, and she explains what problems we still need to solve to pull off a worldwide energy transition. 

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Paul Reichert is a research scientist at Merck, working on improvements to how we administer drugs to patients. Paul's problem is this: How can you run experiments in space to learn how to make better drugs on Earth?

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Hannah Ritchie is a data scientist and the deputy editor of Our World in Data. She is also the author of Not the End of the World: How We Can Be the First Generation to Build a Sustainable Planet. Hannah’s problem is this: How do you use data to get past the doomsday headlines and solve big problems to achieve sustainability?

Check out Our World in Data: https://ourworldindata.org/

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Why has rabies invaded our nightmares for centuries? Author and veterinarian Monica Murphy tells us about the cultural history of rabies (which involves vampires and werewolves!) and how our long nightmare with the disease came to an end. Then, wildlife biologist Kathy Nelson tells us about a surprising program that works to control raccoon rabies… from the sky. Enjoy this episode from Incubation, another Pushkin podcast. 

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After decades of research, gene therapy is starting to work. Shannon Boye is a professor of cellular and molecular therapeutics at the University of Florida. She is also the co-founder and chief scientific officer of Atsena Therapeutics. Shannon’s problem is this: How do you use gene therapy to cure certain forms of blindness? 

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*Or at least, sort of bringing back mammoths and dodos.

Beth Shapiro is the chief scientific officer at Colossal Biosciences and the author of How to Clone a Mammoth: The Science of De-Extinction. Beth's problem is this: How do you use the tools of modern biology – and hundreds of millions of dollars – to bring back species that have been extinct for centuries? And on another level, Beth’s problem is explaining to the world what it really means (and doesn’t mean) to bring back an extinct species.

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The elevator made the modern city possible: No elevators, no skyscrapers. Today, people are working on entirely new kinds of elevators that can go higher and faster than ever. On today’s show, we talk about those innovations with Lee Gray, who is possibly the world’s leading elevator historian and definitely a professor of architectural history at the University of North Carolina at Charlotte.

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The invention of synthetic fertilizer was one of the key breakthroughs of the 20th century. It’s the reason we can grow enough food to feed billions of people. It’s also super energy intensive. Karsten Temme is the co-founder and Chief Innovation Officer at Pivot Bio. Karsten's problem is this: How can you use the tools of gene editing to get microbes in soil to provide more nitrogen for crops?

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Jennifer Holmgren is the CEO of LanzaTech. Her problem is this: How do you capture pollution from factories, feed it to bacteria, and get the bacteria to produce ethanol, which can become everything from polyester to jet fuel?

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Moving from fossil fuels to renewable energy will require huge amounts of copper, lithium, and other metals. Kurt House is the co-founder and CEO of KoBold Metals. The company recently made a huge copper discovery in Zambia, and is looking for other metals in other places. Kurt's problem is this: How do you use AI – machine learning, data science – to find the metals we'll need for the energy transition?

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Dalial Freitak and Annette Kleiser are the co-founders of Dalan Animal Health, a company that has brought to market the first vaccine for insects. Their problem is this: How do you turn a discovery about insect immune systems into a vaccine that can protect the bees we need to grow everything from almonds to blueberries?

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