

What's Your Problem?
iHeartPodcasts and Pushkin Industries
Every week on What's Your Problem?, former Planet Money host Jacob Goldstein talks with entrepreneurs and engineers tackling the biggest challenges at the forefront of technology. How do you make a trip to space as routine as a plane flight? How do you turn solar energy into clean fuel? How do you use AI to stop deadly infections before they spread? We hear a lot these days about how the world is getting worse. What's Your Problem? learns from the thinkers and doers trying to make our future better.
iHeartMedia is the exclusive podcast partner of Pushkin Industries.
iHeartMedia is the exclusive podcast partner of Pushkin Industries.
Episodes
Mentioned books

Sep 4, 2025 • 44min
Why Amazon Built a Spatula-Wielding Robot
Aaron Parness, Director of Applied Science at Amazon Robotics, discusses the challenges of building robots that can efficiently organize and handle items in chaotic environments. He explains the groundbreaking work done with the Vulcan robotic arm, designed for unpredictable warehouse layouts. The conversation dives into tactile sensing integration and how it enhances robotic capabilities. Parness also touches on potential applications beyond warehousing, linking technological advancements with personal growth and future planning.

4 snips
Aug 28, 2025 • 37min
Drilling Smarter Wells to Unleash Geothermal Energy
Carl Hoiland, co-founder and CEO of Zanskar, shares his insights on revolutionizing geothermal energy. He discusses groundbreaking techniques to locate steam deposits beneath the earth's surface, highlighting the advances in AI and probabilistic modeling that enhance drilling precision. Carl recounts the thrilling challenges of geothermal well drilling and the emotional stakes involved. He underscores the potential of geothermal energy in the clean energy transition and how these innovations could reshape the industry in the future.

4 snips
Aug 21, 2025 • 32min
Inventing a Better Pain Pill
Dr. Stephen Waxman, a Yale professor specializing in neurology, neuroscience, and pharmacology, discusses the promising new pain medication, suzetrigine. He explains its innovative approach to targeting nerve cell ion channels without addiction risks. The conversation delves into the complexities of pain, the unique condition Man on Fire syndrome, and the rigorous journey of drug development. Waxman emphasizes the ongoing need for research in pain management to improve treatment outcomes and combat the opioid crisis.

Aug 14, 2025 • 36min
Mapping the Unmappable
Philipp Kandal, Chief Product Officer of Grab, discusses the unique challenges of mapping in Southeast Asia, where narrow and winding streets complicate navigation. He shares insights on how Grab uses innovative technologies, including AI and specialized cameras, to enhance real-time mapping. The conversation covers advancements in indoor mapping for better delivery efficiency and the integration of multilingual support to cater to diverse users. Kandal emphasizes the importance of adapting technology to local needs, shaping the future of navigation in the region.

16 snips
Aug 7, 2025 • 36min
Reinventing Blood
Dr. Allan Doctor, co-founder of Kalocyte and a professor at the University of Maryland, dives into the groundbreaking world of dried red blood cells that can revolutionize medical emergencies. He unpacks the complex science behind artificial blood, the history and risks of blood substitutes, and the role of novel technologies like lipid nanoparticles. Learn about the challenges in creating artificial red blood cells and how these advancements could save millions of lives by enhancing medical responses in critical situations.

12 snips
Jul 17, 2025 • 47min
The AI Pioneer Developing New Kinds of Medicine
Jakob Uszkoreit, CEO and co-founder of Inceptive and co-author of the transformative paper on AI, discusses the groundbreaking role that transformer models play in modern technology. He dives into how these models revolutionize language processing and explores their application in predicting protein structures. Jakob highlights the potential of AI in developing new RNA-based medical therapies, particularly inspired by the efficacy of mRNA vaccines during the COVID pandemic. His insights on the future of medicine showcase an exciting intersection of AI and healthcare.

Jul 10, 2025 • 43min
A Billion-Dollar Bet on Carbon Removal
Nan Ransohoff, the head of climate at Stripe and Frontier, revolutionizes the carbon removal industry with a bold $1 billion commitment. She discusses how economic strategies can motivate companies to invest in sustainable technologies beyond tree planting. Delving into the innovative models akin to those in vaccine development, Nan highlights the importance of establishing a stable market for carbon solutions. The conversation reveals the blend of finance, innovation, and ethical considerations fueling the push for effective environmental strategies.

12 snips
Jul 3, 2025 • 35min
Giving Old Batteries New Life
Megan O’Connor, co-founder and CEO of Nth Cycle, discusses revolutionizing battery recycling and the need for sustainable energy solutions. She shares insights on innovative technologies for refining and recycling critical metals like nickel and cobalt. The conversation dives into the challenges startups face in securing funding for green technologies and the importance of sustainable supply chains. O’Connor also reflects on her journey from academia to entrepreneurship, blending her passion for chemistry with her leadership role in a rapidly evolving industry.

28 snips
Jun 26, 2025 • 41min
Engineering the Future of Fusion
Greg Piefer, co-founder of Shine, dives into the transformational world of fusion energy. He highlights the promise of fusion as a future energy source, while discussing his unique strategy of targeting profitable markets first, such as medical isotope production. Piefer shares insights on overcoming technical and economic challenges, and the potential for fusion to lead to groundbreaking advancements in healthcare and beyond. He also touches on the exciting possibilities of using fusion technology for space exploration.

Jun 19, 2025 • 33min
Can Robots Fix Recycling?
Rebecca Hu Thrams, co-founder and CEO of Glacier, brings her expertise in AI and robotics to tackle the chaotic world of recycling. She boldly calls recycling 'the most demented form of manufacturing' and explores how technology can enhance sorting efficiency while addressing labor shortages. The discussion also highlights the challenges of automation, such as developing computer vision for recycling robots. Rebecca breaks down myths like 'wish cycling' and emphasizes the need for stable markets for recycled materials in a shifting legislative landscape.