Caleb Watney on *Cracks in the Great Stagnation* and How to Boost Economic Growth

Episode Summary

Executive Summary: The episode argues that the long productivity slowdown may be easing, with signs of “cracks” in the great stagnation across vaccines, transportation, energy, food, digital tech, and chips. Caleb Watney stresses that optimism and policy reform—especially in R&D, science institutions, and skilled immigration—are essential to converting technical progress into broad productivity gains.

Main Topics: The Great Stagnation and productivity slowdown (Priority: 5/5): The hosts frame the postwar productivity boom, the subsequent slowdown, and why long-run total factor productivity matters for living standards, poverty reduction, and economic capacity. Why measurement and “leisure gains” do not fully explain the slowdown (Priority: 4/5): They discuss claims that productivity is mismeasured, especially around smartphones and free digital services, but conclude that unmeasured leisure gains cannot substitute for gains in productive capacity. Why scientific and innovation bottlenecks may not be inevitable (Priority: 5/5): The conversation engages with arguments that ideas are getting harder to find and that Baumol-style cost disease explains stagnation, while emphasizing institutional reform and better incentives for breakthrough research. Technologies that suggest a turning point (Priority: 5/5): Watney highlights recent advances in mRNA vaccines, autonomous vehicles, energy storage, geothermal and nuclear power, alternative meats, AI, and semiconductor design as evidence of real technological momentum. Pandemic as catalyst and stress test (Priority: 4/5): COVID-19 accelerated adoption of remote work, digital coordination, and vaccine development, while also revealing the importance of coordination, public-private partnerships, and resilience of innovation clusters. Government’s role in R&D and mission-oriented innovation (Priority: 4/5): The discussion argues for government support of basic research, guaranteed markets, and partnership models like Operation Warp Speed to overcome uncertainty and speed deployment. Immigration and the “egghead gap” (Priority: 5/5): Watney argues the U.S. became a scientific superpower by attracting top global talent and should continue to recruit and retain high-skilled immigrants to preserve its innovation lead over China.

Key Arguments: Long-run productivity growth is what determines living standards, and sustained slowdowns compound into large welfare losses over decades. Measurement error may exist at the margins, but it cannot explain the scale and global nature of the productivity slowdown. Free digital products improve leisure and consumer surplus, but that is not the same as expanding productive capacity. The slowdown in scientific output may reflect weak incentives and institutional design, not an unavoidable law of diminishing returns. Optimism itself matters because expectations shape whether society invests effort into realizing new technologies and reforms. mRNA vaccines show how decades of foundational science can suddenly yield major breakthroughs when a crisis creates urgency and coordination. Autonomous vehicles are moving from “can they?” to “when will they?” as Waymo begins fully driverless public service. Energy abundance is central to broad productivity gains; nuclear and geothermal are promising because they can provide stable, dispatchable power. Alternative proteins and vertical farming may reduce costs and externalities, improving welfare even when gains are not fully captured in TFP. AI and chips can radically improve communication, creativity, and computing efficiency, potentially unlocking new applications and productivity booms. The U.S. must fix bureaucratic barriers and veto points, such as NEPA delays and NIMBYism, to build transformative infrastructure. Immigration has historically powered American scientific leadership, and maintaining that advantage requires actively welcoming top global talent.

Data Points: Postwar U.S. total factor productivity growth: around 2% per year - From World War II through the early 1970s, cited as the benchmark period of strong productivity growth. TFP growth in slowdown era: about 0.5% per year - Average growth from the 1970s through the early 1990s, showing a major deceleration. TFP growth since 2005: about 0.4% per year - Described as nearly flatlining in the recent era. Potential living-standard gap from sustained 2% growth: 30-40% higher - Estimate of how much higher standards of living might be if the earlier TFP growth rate had continued. Vaccine development timeline: roughly 5-10 years - Typical historical timeframe for developing a novel vaccine, contrasted with the rapid COVID vaccine rollout. France’s nuclear electricity share: 80% - Used as an example of high nuclear penetration and stable power generation. U.S. federal R&D share during the space era: about 10% of the federal budget - Referenced as a historical comparison to today’s much lower federal emphasis on R&D. Current federal R&D share: 4% or less - Used to illustrate declining federal commitment to R&D over time. Nobel Prize in Physics share, early period: 3 of 30 prizes (~10%) - U.S. involvement in the first 30 years of the Nobel Prize in Physics. Nobel Prize in Physics share, later period: about two-thirds - Later era in which American scientists were involved in roughly two-thirds of physics prizes. Battery life improvement from chip design: about 2x - Claimed gain from Apple’s M1 system-on-a-chip architecture. Potential wireless communications capacity increase: up to 50x - Projected combination of bandwidth reduction via AI and wider deployment of 5G.

Pivotal Quotes: "There is light at the end of the TFP tunnel." — David Beckworth: Summarizing the optimistic thesis that recent breakthroughs may signal an end to stagnation. "It was just like the first time they've used it in humans." — Caleb Watney: Referring to mRNA vaccines as a breakthrough platform with broad future applications. "It kind of moves the question from about AVs to a can they or will they question to a when they." — Caleb Watney: On Waymo’s driverless service and the shift from feasibility to deployment timing.

Implications: If these trends continue, productivity growth could reaccelerate, but only if policy removes barriers, funds basic science, welcomes skilled immigrants, and lets breakthrough technologies scale quickly and safely.