Rational Optimist Podcast

Join host Stephen McBride every Wednesday for the Rational Optimist Podcast. You'll discover incredible things happening that everyone should know but most people don't... from the revival of supersonic flight and nuclear power, to the revolution in biotech now underway.

Rational Optimist Podcast is a business podcast hosted by Stephen McBride, with 63 episodes on record and a Required Pod Score of 80. PitchCentric scores this show on Booking Probability, Listen Score, and live audience signals refreshed every 24 hours.

Stephen McBride hosts Rational Optimist Podcast, a business show with 63 episodes published.

Our AI reads these to draft pitches. Use them as grounding for a pitch that cites a real guest and a specific topic.

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  Episode #11

  America Needs to Build Again. Its Factories Aren't Ready. | Dirac

  Aug 19, 20261h 6mS2

  Fewer than 10% of U.S. manufacturing facilities have a single robotic arm. By 2030, America will have over 2 million unfilled manufacturing jobs. Filip Aronshtein, CEO of Dirac, says this isn't a labor problem — it's a context problem, and a cultural one, where "China is frankly kicking our asses." In this episode, Fil breaks down why America forgot how to build real things, the shocking gap between engineering and manufacturing on the factory floor, and how Dirac's AI+CAD platform automatically generates 80-90% of work instructions — making manufacturing engineers' jobs 95% faster. We cover the "3Ds" driving industrial demand (Defense, Data Centers, De-risking), why nobody's working on valves even though they cause rockets to blow up, and what it will actually take to make manufacturing "sexy again" for the next generation of builders.

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  Episode #10

  Is Embryo Selection Eugenics? He Says No. | Herasight

  Aug 12, 20261h 4mS2

  Is selecting embryos to avoid devastating diseases the same thing as eugenics? Jonathan Anomaly of Herasight says no — and the data behind his argument might change your mind. In this episode of Optimists Make Money, we go inside the world of embryo selection and polygenic risk scoring — the technology letting parents assess real disease risk (schizophrenia, diabetes, certain cancers) in embryos during IVF, before a pregnancy even begins. Jonathan breaks down how large-scale biobank data turns genetic risk into an actionable score, why some countries have banned the practice outright, and why he believes the "designer babies" framing misses the point entirely. We dig into the taboo head-on: is this eugenics debate rooted in real ethical risk, or in outdated fear of a technology that's already helping families avoid preventable suffering? Jonathan makes the case that minimizing risk of a "devastating disease" isn't a slippery slope to a dystopian future — it's just informed reproductive choice, backed by the same statistical logic doctors already use elsewhere in medicine. What we cover: How polygenic risk scores are calculated from biobank data Why embryo selection for disease risk is legal in the US but restricted in the UK The eugenics comparison — and where Jonathan thinks it breaks down What's next for genetic screening technology in IVF The line between disease prevention and trait selection

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  Episode #9

  "Synthetic Fuel Could Cost 30% of Today's Fossil Fuel" | Syntholene

  Aug 5, 20261h 4mS2

  Could synthetic jet fuel become cheaper than fossil fuel? Syntholene CEO Dan Sutton believes geothermal energy, high-temperature electrolysis and captured carbon could bring that cost crossover within reach. In this conversation, Sutton explains how Syntholene uses Iceland's geothermal heat, water and electricity to produce high-purity hydrogen—the ingredient in synthetic aviation fuel. He discusses why today's e-fuels and sustainable aviation fuel remain expensive, how solid oxide electrolyzer cells can improve efficiency, and why synthetic hydrocarbons could eventually compete with petroleum without requiring a "green premium." Dan also shares results from Syntholene's demonstration facility, its first metric ton of hydrogen and the independent testing underway. He outlines the road to commercial production, including securing low-cost geothermal power, captured CO₂, airline customers and industrial partners. The discussion explores the history of synthetic fuel in World War II, Iceland's energy advantage, partnerships with Icelandair, small modular nuclear reactors, competition with China, government mandates, supply-chain bottlenecks and the future price of flying. Can cleaner jet fuel win because it is a better, cheaper product? This episode examines the technology, economics and founder bet behind aviation fuel made without drilling for oil.

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  Episode #8

  They're Actually Going to Mine an Asteroid | Astroforge

  Jul 29, 202653 minS2

  AstroForge is attempting what no private company has ever done: reach a metal-rich asteroid, mine it for platinum and bring that material back to Earth. If it works, the company could create an entirely new source of critical resources—and potentially launch a new age of human abundance. In this episode, AstroForge founder and CEO Matt Gialich explains how his 50-person team is building low-cost spacecraft for deep space, what the failure of its Odin mission taught them, and why the company's next mission has one overriding goal: land on an asteroid. Matt also breaks down the economics behind asteroid mining, including why AstroForge believes it could achieve margins as high as 85%, how abundant platinum could unlock technologies such as affordable hydrogen energy, and why the United States may already be falling behind China in the race to exploit space resources. We discuss: How AstroForge plans to find, reach and mine a metal asteroid Why Odin failed—and how the team rebuilt for its next mission The economic breakthrough making asteroid mining possible now Why a small spacecraft can take risks NASA cannot How AstroForge could produce a sub-$5 million interplanetary spacecraft The coming competition between the United States and China Why manufacturing matters more than spacecraft design The case for replacing destructive Earth-based mining How abundant platinum could change technology and the global economy Matt's unfiltered verdict on Starship, Starlink, the Moon and space data centers Matt Gialich is the co-founder and CEO of AstroForge, an aerospace company developing the technology required to extract platinum-group metals from asteroids. #AsteroidMining #AstroForge #SpaceTechnology

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  Episode #7

  Matt Ridley Knows How to Stop the AI Apocalypse

  Jul 15, 202628 minS2

  <p >Matt Ridley has spent decades studying evolution, innovation, energy, genetics, and the forces that shape human progress. In this conversation, he argues that many of today's biggest debates about AI, energy, biotechnology, and economic growth are missing the bigger picture.</p> <p >We discuss why AI is more likely to evolve through competition than domination, why America may be entering a new era of physical innovation, how breakthroughs in gene editing and medicine could transform healthcare, and why slowing innovation may be the greatest cost we impose on future generations.</p> <p >Whether you're interested in AI, startups, energy...

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