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  • AI hype has bled deep into the nuclear sector, and in this episode, Chris Keefer sits down with returning guest David Helmer, an engineer and AI advisory consultant with a decade advising the US government on machine learning and autonomous systems, to examine what the technology can actually do, who benefits from inflating those claims, and what a correction would mean for nuclear's investment story.

    The conversation covers the ELIZA effect and why human brains are hardwired to anthropomorphize language models; the structural gap between frontier lab costs and revenues; why hallucination and reliability problems are embedded in LLM architecture rather than solvable through scaling; and why the AGI narrative functions primarily as a justification for otherwise unjustifiable capital concentration. For nuclear advocates, the question is not whether AI demand is real today, but whether the speculative reactor developers pricing in hyperscaler contracts will still have a business if the AI bubble deflates.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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    Website: https://www.decouple.media

  • David Helmer spent years working on cooling systems for GE jet turbines before moving to Boston Consulting Group, the Applied Physics Laboratory, and West Point. He joins Decouple to explain why the gas turbine, despite being conceptually understood for centuries, only became buildable in the crucible of the Second World War, and why mastering it remains beyond the reach of all but a handful of institutions on earth.The conversation covers the materials science at the heart of the technology, where turbine blades operate above their own melting point and components in continuous distress are kept flying for hundreds of additional cycles before refurbishment. We examine why innovation cycles in aviation are measured in decades rather than years, drawing direct comparisons to nuclear's certification constraints and contrasting both with the faster but higher-risk iteration model of the rocket sector. The discussion moves from aviation into power generation, tracing the combined cycle plant's efficiency gains, the AI-driven demand surge now stretching turbine order books to 7 years, and what the scramble to convert end-of-life commercial jet engines for data center power reveals about supply chain limits. The episode closes on geopolitics: why only 3 companies produce competitive commercial jet engines, what reverse engineering cannot unlock, and why Russia's turbine capability was always more dependent on Western materials, machine tools, and maintenance expertise than anyone acknowledged until the sanctions arrived.Listen to Decouple on:• Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz• Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4• Overcast: https://overcast.fm/itunes1516526694/decouple• Pocket Casts: https://pca.st/ehbfrn44• RSS: https://anchor.fm/s/23775178/podcast/rssWebsite: https://www.decouple.media

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  • Grant Isaac, President and COO of Cameco, joins Decouple to explain why uranium behaves unlike any other commodity. With essentially zero fundamental in-year demand, a spot market that reports prices rather than discovering them, and a long-term contracting structure that ties producers directly to the utilities using the fuel, uranium operates by rules that confound anyone who approaches it through the lens of oil, gas, or base metals. Grant walks through Cameco's history as an integrated nuclear fuel company spanning mining, milling, conversion, and now fuel fabrication and reactor services through its Westinghouse partnership, explaining why that vertical integration reflects genuine customer intimacy rather than financial engineering.

    The conversation covers the full sweep of uranium market cycles from the post-Atoms for Peace inventory buildup through the post-Fukushima bear market, Cameco's decision to curtail 70% of its production rather than sell into a floor, and what is structurally different about the current cycle. The historic secondary supply buffer that held prices down for 30 years is gone, Kazakhstan has learned the lesson that producing more into a weak market destroys national asset value, and geopolitical fragmentation is bifurcating what was once a seamlessly globalized commodity into distinct western and non-western supply chains. Grant argues that the long-term price signal, steady rather than saw-toothing, reflects a more durable demand base than any previous cycle.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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    Website: https://www.decouple.media

  • Nuclear construction once hit timelines that today sound implausible. First of a kind reactors completed in under four years, delivered at lower cost than mature designs, and executed with a level of coordination that the modern industry has largely lost. This episode uses the Advanced Boiling Water Reactor (ABWR) as a lens to examine that moment, not as a historical curiosity, but as a proof point that the constraints shaping today’s projects are not inherent to nuclear technology. The focus is on the underlying conditions that made that outcome possible, disciplined design completion before construction, tight integration between utility, vendor, and supply chain, and a development culture oriented around execution rather than iteration.

    Amid growing frustration in Washington with the pace and performance of Westinghouse, there are signs the Trump administration is at least considering whether the ABWR deserves a second look. That tension opens a broader question explored in this episode: whether the industry’s problem is technological, or organizational. The discussion examines how fragmented ownership, incomplete designs, and weak competitive pressure have reshaped project delivery, and what might change if utilities reclaimed the role of developer. It closes by asking whether the path forward lies in new designs, or in rediscovering how to actually build the ones that already worked.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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    Website: https://www.decouple.media

  • In this episode of Decouple, Chris Keefer is joined once again by Michael Seely of the Atomic Blender to explore nuclear fuel reprocessing and the promise of unlocking vastly more energy from existing nuclear waste. We deep dive how processes like PUREX attempt to separate and reuse valuable materials like uranium and plutonium. Using real-world examples such as France’s La Hague reprocessing plant and the EBR-2 sodium fast reactor experiment, the episode situates reprocessing within its historical roots in perceptions of uranium scarcity and energy security.

    While reprocessing is technically impressive, it is complex, expensive, and delivers only modest gains when used with today’s reactor fleet. Keefer and Seely unpack why issues like fuel degradation, handling challenges, and economics limit its impact, and what would need to change, such as the deployment of economic fast reactors, for reprocessing to live up to is most seductive narratives.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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  • In this episode we are joined by Seaver Wang to discuss the physical foundations of China’s industrial dominance in solar, batteries, electric vehicles, semiconductors, rare earth magnets, and aluminum. We examine how these sectors are presented as evidence by climate activists that clean technology is delivering a new kind of green industrial superpower and interrogate that claim at the level of production.

    What sits upstream of the electrotech stack is not a network of modular green technologies, but large scale industrial systems that turn electricity into materials. These products are best understood as “congealed electricity.” In China industrial electricity, in particular, is still predominantly coal fired, often anchored in captive, mine-mouth coal plants tied directly to industrial clusters producing polysilicon, graphite, metals, and intermediates.

    These are not flexible, marginal power sources that can be easily displaced by wind and solar but rather capital intensive systems built for continuous output, with emissions embedded deep in the supply chain and largely invisible at the point of use.

    The disconnect between hope and physical reality sustains a form of greenwashing that many climate commentators continue to reproduce, despite the underlying industrial system pointing in a very different direction.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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    Website: https://www.decouple.media

  • Europe once treated energy as the foundation of civilization. After the oil shocks of the 1970s, it built nuclear at scale, opened the North Sea, and secured long term pipeline supply. That system produced resilience, surplus, and industrial strength. Today, the arithmetic has flipped. Europe consumes roughly 38 exajoules of hydrocarbons and produces about 6. This episode examines how that reversal happened, not as an accident, but as the result of political choices that prioritized higher order goals while eroding the physical base that supports them.

    This conversation connects that shift to a broader framework. Maslow’s hierarchy applied to energy systems. When policy moves up the pyramid while the base weakens, fragility follows. We walk through the numbers behind Europe’s dependence, compare the current crisis to the 1970s, and contrast Europe’s trajectory with countries that optimized for resilience instead of efficiency. The result is a clear picture of what happens when an advanced economy loses sight of the molecules that keep it running.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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    Website: https://www.decouple.media

  • This episode features Joe St. Julian, President of Nuclear at AtkinsRéalis, outlining why Canada may be closer to a new nuclear fleet build than most observers realize. Drawing on his background delivering complex U.S. nuclear megaprojects, St. Julian explains why the recent refurbishment programs at Darlington and Bruce have rebuilt the workforce, supply chain, and execution capability needed for repeatable construction. The conversation explores the Monark concept, the strategy of replicating Darlington to minimize first-of-a-kind risk, and the licensing work required to bring legacy designs into alignment with modern standards.

    The discussion then turns to export markets and geopolitical strategy, including projects in Romania, Poland, and Asia. St. Julian contrasts Canada’s position, a fully active supply chain without a coordinated national build program, with emerging U.S. efforts to align policy, financing, and deployment around Westinghouse’s AP1000. The episode closes on the central question shaping Canada’s nuclear future, whether the country will mobilize its existing industrial base into a sustained build program or allow that capability to remain underutilized.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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  • The Iranian drone strike on Qatar’s Ras Laffan industrial complex has sent shockwaves through global energy markets, triggering force majeure on 20 percent of the world’s LNG supply and closing the Strait of Hormuz to commercial shipping. To understand what just happened and what comes next, Decouple is joined by Stephen Stapczynski, Bloomberg’s leading LNG correspondent and one of the few journalists who has spent years tracking the shadow fleets, supply chains, and geopolitics that sit behind the world’s fastest-growing fossil fuel market.

    This conversation traces how Qatar came to sit atop the world’s most consequential gas reservoir, why Iran was never able to monetize its side of the same field, and how the shale revolution gave Washington the geopolitical freedom to let this crisis unfold. Stephen discusses the Arctic Metagas, the first LNG carrier ever successfully attacked, and what its destruction in the Mediterranean signals about a world in which the affordable, reliable LNG that was supposed to be the bridge fuel for the developing world was always premised on freedom of navigation holding.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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  • Nuclear fuel is nothing like the coal or gas it replaces. Where fossil fuels are destroyed in combustion, nuclear fuel must survive years of continuous fission inside a reactor and come out the other end looking almost exactly as it went in. In this episode, fuel engineer Michael Seely breaks down how uranium dioxide pellets are made, why the fuel rod is one of the most sophisticated manufactured objects in the world, and how an industry that once ran more than half its fleet on leaking fuel pins methodically engineered its way to near-zero failure rates by 2010.

    We also get into enrichment economics, the bespoke nature of reactor fuel design, the post-Fukushima push toward accident-tolerant and higher-burnup LEU Plus fuel, and why high-assay low-enriched uranium (HALEU), the feedstock required by most advanced reactor concepts, requires 40 kilograms of natural uranium and six times the separative work of conventional fuel just to produce a single kilogram. If you want to understand why nuclear plants are built the way they are, why the water cooled reactor won, and what the fuel supply chain challenge really means for the advanced reactor industry, this is the episode to start with.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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    Website: https://www.decouple.media

  • For two decades the nuclear conversation has revolved around new builds, advanced reactors, and megaproject risk. Meanwhile, forty Westinghouse pressurized water reactors continue operating at roughly the same thermal output they were commissioned at decades ago, leaving six to ten gigawatts of potential capacity sitting inside existing plants. In this episode, I speak with Robb Stewart and James Krellenstein of Alva Energy about why power uprates may be the fastest and most capital efficient way to expand nuclear generation in the United States. Rather than chasing first of a kind reactor designs, they argue that modern steam generator technology, improved thermal hydraulic modeling, and standardized secondary side upgrades can unlock the equivalent of twenty to thirty 300 megawatt small modular reactors within three to five years.

    We examine why boiling water reactors captured most historical uprates while pressurized water reactors remained largely untouched, how balance of plant constraints rather than reactor physics often limit output, and why diverting additional steam to a separate turbine island changes both risk and economics. With hyperscalers willing to pay premium prices for reliable, low carbon power, incremental nuclear megawatts now carry real market value. The question is whether the industry can prioritize disciplined industrial execution over novelty and finally harvest the gigawatts hiding in plain sight.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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    Website: https://www.decouple.media

  • In this episode of Decouple, Chris sits down with Kyle Chan of the High Capacity Substack to unpack what “AI with Chinese characteristics” actually means. Rather than framing artificial intelligence as a simple US–China race to AGI, they explore how each country is building AI inside very different institutional systems. The conversation covers DeepSeek, compute constraints, quantization, and the surprising reality that many Chinese AI labs operate with far less capital than their American counterparts while still publishing at the frontier.

    They dig into China’s AI enabling stack, from universities and state-backed labs to energy buildout and the Western Data, Eastern Compute strategy, and examine how AI is being embedded into manufacturing, logistics, grid management, and public services as a tool of state capacity. The discussion also tackles regulatory differences, CCP oversight, training data controls, and the disciplining of China’s tech sector, alongside contrasts with US AI development shaped by venture capital, platform economics, and liability management. This is a deep dive into how institutions shape technology, and why the real story may not be who wins the race, but how AI is absorbed into two very different political economies.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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    Website: https://www.decouple.media

  • In this special episode of Decouple, Chris Keefer speaks with Ken Petrunik, one of the few leaders in the Western nuclear industry who has taken large reactors from first concrete to operation under budget and ahead of schedule. Petrunik’s career spans Canada’s nuclear golden age and its export era, with senior roles in Romania, Argentina, and China, including leading the Qinshan Phase III CANDU reactors, delivered ahead of schedule and under budget under a fixed price engineering, procurement, and construction contract. The conversation traces how Canada once built nuclear plants at scale and how that environment shaped project managers capable of carrying real responsibility.

    We deep dive how nuclear projects are actually delivered, including construction sequencing, labor productivity, schedule control, and on site authority. Petrunik recounts moments when projects nearly failed and explains how early decisions and transparent coordination allowed recovery before delays became irreversible. The episode also examines what was lost as Canada’s build capability faded and what today’s nuclear programs can still learn from the people who led projects when reactors were routinely built.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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    Website: https://www.decouple.media

  • In this episode of Decouple we deep dive the European Pressurised Reactor and what its troubled construction history reveals about the real constraints on nuclear build out in the modern West. The conversation traces how a design intended to satisfy every regulator through a design philosophy of extreme redundancy and conservative safety margins instead exposed the limits of Western construction capacity, supply chain readiness, and project management culture.

    The episode also places the EPR in context alongside other large reactor designs, including AP1000 and APR 1400, highlighting how different philosophies around active redundancy, passive safety, modularity, and operational flexibility shape construction risk and cost. We explore why Germany and Korea were able to execute reactors with highly redundant active safety systems successfully when industrial capacity was warm, and why the EPR pushed that same philosophy beyond the point of diminishing returns.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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  • Why have we built nuclear ships before, proven they can operate, and still not made them commonplace?

    Nick Touran breaks down the history of maritime nuclear power, from the Nuclear Ship Savannah and Otto Hahn to Japan’s Mutsu and Russia’s Sevmorput, then pivots to floating nuclear power concepts such as the MH 1A Sturgis and the Offshore Power Systems program. We explore what worked, what failed, and what keeps blocking adoption, including port access rules, indemnity and international agreements, staffing costs, containerization economics, shielding and public reaction, and the unique operational demands of running reactors at sea.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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  • In this episode of Decouple, Dr. Jeff Waksman, Principal Deputy Assistant Secretary of the Army for Installations, Energy and Environment, explains how the U.S. Army is making a second attempt at making microreactors great again. The discussion situates the Janus microreactor program in the long history of the Army Nuclear Power Program and Project Pele, highlighting why earlier small reactor deployments failed to compete with diesel and grid power even in extreme environments, and why Janus represents a fundamentally different approach.

    Janus is best understood as an attempt to apply the Commercial Orbital Transportation Services model to nuclear energy, using milestone-based funding, hard downselects, and vendor replaceability to subsidize learning rather than electricity sales. The conversation explores the severe economic constraints facing one to ten megawatt reactors, the limits of the SpaceX analogy, and the unglamorous but decisive challenges of fuel logistics, waste removal, and slow nuclear learning cycles that will ultimately determine whether microreactors can ever move beyond demonstration and into durable military let alone commercial service.


    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

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  • The first U.S. nuclear renaissance collapsed under the weight of cheap shale gas, lost institutional expertise, and disastrous projects like Vogtle and Summer. Today, America is planning a fleet of eight AP1000 reactors, backed by unprecedented federal incentives. But can the country actually build large nuclear again?

    In this video, we break down what really killed the 2000s revival, why Fukushima wasn’t the turning point, and how AP1000 and ESBWR passive safety performed in station-blackout analyses. Most importantly, we explore why nuclear success depends not on reactor design, but on rebuilding the developer organizations needed to execute these megaprojects.

    If the United States can rebuild those institutions, a real nuclear comeback is possible. If not, history risks repeating itself.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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  • Saudi Arabia burns nearly one million barrels of oil per day to keep its lights on, yet it has cheaper and faster ways to replace this than by building large nuclear reactors. So why is the Kingdom pushing so hard for a civil nuclear deal? This episode walks through the strategic logic that has animated Riyadh’s nuclear ambitions for more than a decade. The answer lies in prestige, industrial capacity, and the latent fuel cycle capabilities that come with a power reactor programme, all set against the backdrop of regional tension with Iran.

    We look closely at the recent Washington announcement that United States Saudi 123 talks have been “concluded,” the unresolved fight over enrichment rights, and the geopolitical pressure being applied to South Korea to align its nuclear exports with American interests. From the legacy of the Quincy pact to the rivalry between Westinghouse and KEPCO, this conversation unpacks how a simple reactor tender has become one of the most consequential energy and security decisions in the Gulf.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

    • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4

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  • In this episode, Chris Keefer speaks with Hadron Energy founder Samuel Gibson, the twenty four year old entrepreneur pursuing a ten megawatt integral pressurized water microreactor through a one point two billion dollar business combination with GigCapital7. Gibson outlines why he believes light water is the fastest licensing path, how he assembled a veteran nuclear team, and why Hadron shifted from a one megawatt concept to a ten megawatt design built around LEU plus fuel, modular plant layouts, and air cooled decay heat removal. Keefer presses on the harder questions: whether factory fabrication can overcome the fixed civil works and regulatory burdens that have crippled previous SMR efforts like NuScale and mPower, what off the shelf really means in a hollowed out US supply chain, and how long refueling cycles, fuel qualification, and decommissioning challenges scale at microreactor size. The conversation becomes a broader test case for whether startup optimism can meaningfully confront the industrial, economic, and physics grounded constraints that define real world nuclear deployment.

    Listen to Decouple on:

    • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz

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