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Unreasonable Stories

Unreasonable Group
Craif
Cancer
Econcrete
Embrace Global
Air Protein
Renewable Energy
Sun King
Urine
Biodiversity
Carbon Sequestration
Marine Infrastructure
Like a Wave, We Break
Coverti
Naked Energy
Fourth Partner Energy
Zincfive
Nickel-Zinc
Data Centers
Artificial Intelligence
Solar Thermal

Unreasonable Stories is a podcast from Unreasonable Group featuring conversations with entrepreneurs, leaders, and builders working on some of the hardest problems of our time. Hosted by Daniel Epstein, founder of Unreasonable Group, each episode goes beyond the business to hear the real story of the person behind the work, from what drives them and how they got here, to what they've learned along... more

PublishesTwice monthlyEpisodes10Founded4 months ago
Number of ListenersCategories
EntrepreneurshipBusiness

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Artwork for Unreasonable Stories

Latest Episodes

Molly Morse is the CEO and co-founder of Mango Materials, a Bay Area company that turns methane into a biodegradable plastic alternative. Its material is grown by bacteria that eat methane and store a natural polymer, PHA, in their cell walls, which ... more

Patrick Walsh and Anish Thakkar are the co-founders of Sun King, the world's largest off-grid solar energy company. Over two decades they have brought solar power to more than 26 million homes across 46 countries, created work for more than 37,000 fi... more

Dylan Taylor is the founder and CEO of Voyager Technologies, a space infrastructure company that went public in 2025. Voyager is building Starlab, a commercial successor to the International Space Station, and through its Nanoracks business is the la... more

ZincFive is the world's leading nickel-zinc battery company. Its batteries cannot be forced into fire, are over 90 percent recyclable through a smelter-free chemical process, and deliver power in millisecond bursts that lithium cannot match on its ow... more

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Recent Guests

Molly Morse
CEO and co-founder of Mango Materials, expert in methane-based bioplastics
Mango Materials
Episode: She Grows Biodegradable Materials Inside Bacteria
Tim Hysell
Founder of ZincFive, Nickel-Zinc battery pioneer
ZincFive
Episode: The Battery Built for Traffic Lights, Now Powering AI Data Centers.
Christophe Williams
Founder and CEO of Naked Energy
Naked Energy
Episode: Wimbledon Players Shower in Solar-Heated Water. Here's Who Built It.
Lisa Dyson
Unreasonable Impact Fellow; founder of Air Protein and Coverti
Air Protein, Coverti
Episode: She Studied Time Travel at MIT. Now She's Making Food from Air.
Jane Marie Chen
Founder of Embrace Global, bestselling author
Embrace Global / Embrace
Episode: A Million Babies and What It Cost to Save Them
Dr. Ido Sella
Co-founder and CEO of EConcrete
EConcrete
Episode: Concrete That Works With the Ocean, Not Against It

Host

Daniel Epstein
Host of Unreasonable Stories

Reviews

5.0 out of 5 stars from 10 ratings
  • A rare gem of a pod.

    Hearing the stories of these types of entrepreneurs gives me optimism that future generations might just have a chance. Love every episode so far 🔥❤️

    Apple Podcasts
    5
    Rosscobeese
    United Kingdom4 months ago
  • Love the Intimacy of Conversation

    It’s wonderful to understand not just advanced technological solutions but also the personal stories behind the people who are coming up with them

    Apple Podcasts
    5
    Kaya Reyes
    United States4 months ago

Listeners Say

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

The intimate conversation style helps uncover the human side behind bold ventures.
Guests are showcased as mission-driven builders with real-world impact, not just hype.
Listeners praise authentic narratives and practical leadership takeaways for aspiring founders.
Profiles balanced between technical detail and personal storytelling, making complex ideas feel relatable.

Chart Rankings

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Talking Points

Recent interactions between the hosts and their guests.

The Battery Built for Traffic Lights, Now Powering AI Data Centers.
Q: Can you explain Nickel Zinc versus Lithium-Ion versus other rechargeable battery solutions and why it's better for AI data center workloads?
Nickel-Zinc excels at short, high-rate discharges required by AI GPUs, unlike Lithium which is optimized for longer durations; ZincFive batteries deliver high power with a much smaller footprint, lower safety risks, and greater recyclability, making them cost-effective for AI pulsing and data-center back-up without oversized infrastructure.
She Studied Time Travel at MIT. Now She's Making Food from Air.
Q: How did you transition from BCG to starting Air Protein and Coverti?
She highlights her father's entrepreneurial example and the belief that scientific methods can solve business problems, which inspired the move from consulting to building a deep-tech platform focused on converting CO2 from air into a range of molecules, eventually leading to Air Protein.
She Studied Time Travel at MIT. Now She's Making Food from Air.
Q: Can you walk us through what you studied and your degrees?
Dyson describes a path from mathematics and physics at Brandeis to a master's in quantum fields at Imperial College London, culminating in a PhD in string theory at MIT, with a thesis on rotating black holes, cosmology, and time travel.
Renewable Energy That Saves India’s Factories 40% on Their Power Bill
Q: How do you justify the 30-40% energy-cost savings to potential clients?
By minimizing capital costs through efficient project execution, securing favorable capital terms, and providing a broad, national footprint that allows assets to be integrated with the grid and scaled to meet large industrial needs.
Renewable Energy That Saves India’s Factories 40% on Their Power Bill
Q: What problem were you solving when you started Fourth Partner Energy?
We aimed to fix the last-mile power problem in India by moving from small, on-site solar installations to large-scale, capital-intensive projects financed through long-term power purchase agreements, with a focus on making energy affordable for industrial clients.

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Frequently Asked Questions About Unreasonable Stories

What is Unreasonable Stories about and what kind of topics does it cover?

This show features in-depth conversations with entrepreneurs, founders, and leaders who tackle bold, hard problems across technology, energy, health, and space. Episodes blend personal origin stories, leadership lessons, and strategic pivots with practical insights on fundraising, governance, partnerships, and building sustainable impact at scale. Notable throughlines include mission-driven ventures, hardware and software integration, long-horizon thinking, and a candid look at resilience, mentorship, and moral responsibility in growing companies that aim to change industries and society.

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Which podcasts are similar to Unreasonable Stories?

These podcasts share a similar audience with Unreasonable Stories:

1. Why Isn't Everyone Doing This? with Emily Fletcher

How many episodes of Unreasonable Stories are there?

Unreasonable Stories launched 4 months ago and published 10 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 Unreasonable Stories?

Recent guests on Unreasonable Stories include:

1. Molly Morse
2. Tim Hysell
3. Christophe Williams
4. Lisa Dyson
5. Jane Marie Chen
6. Dr. Ido Sella

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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