80,000 Hours Podcast
80,000 Hours Podcast

#45 - Tyler Cowen's case for maximising econ growth, stabilising civilization & thinking long-term

I've probably spent more time reading Tyler Cowen - Professor of Economics at George Mason University - than any other author. Indeed it's his incredibly popular blog Marginal Revolution that prompted me to study economics in the first place. Having spent thousands of hours absorbing Tyler

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Executive Summary: Tyler Cowen and Rob Wiblin discuss Cowen’s book Stubborn Attachments and his broader worldview: prioritize sustainable economic growth, stability, and long-term future value while keeping human rights and common sense moral constraints. The conversation spans discounting the future, aggregation, rules vs acts, uncertainty, existential risk, space colonization skepticism, drugs/alcohol, philanthropy, and the role of markets, institutions, and culture.

Main Topics: Sustainable economic growth as the central moral goal: Cowen argues that society should treat sustainable economic growth as the main macro-level objective because it compounds over time and benefits vast numbers of future people. Long-termism, discounting, and aggregation: The discussion defends near-zero moral discounting of the future and argues that aggregation over time and across people can justify prioritizing future welfare more than contemporary redistribution. Human rights, uncertainty, and moral constraints: Cowen says consequentialism should operate within human-rights constraints; deep uncertainty about outcomes makes rights-respecting rules attractive even when growth is a priority. Existential risk, stability, and technology: They explore nuclear war, bioweapons, surveillance, climate change, and AI-like advances as threats to civilization, with Cowen emphasizing stability and coordination but remaining skeptical of many proposed fixes. Markets, institutions, and liberal order: Cowen defends markets, selective government investment in science, and strong institutions, while warning against overcentralization, excessive regulation, and simplistic planning. Philanthropy, culture, and personal behavior: Emergent Ventures, effective philanthropy, alcohol/drugs, education, and culture are discussed as practical levers for improving innovation, resilience, and civilization. Future of space, AI, and human enhancement: Cowen is pessimistic about rapid space colonization and skeptical that AI will soon become self-aware, but thinks future technologies may eventually improve lives in more limited, biological ways.

Key Arguments: Economic growth matters morally because benefits compound over time and can persist for centuries or millennia; small increases in growth can have enormous long-run effects. The moral discount rate for welfare should be close to zero; discounting future well-being like financial cash flows is a mistake. Aggregate judgments across people and time are both possible and necessary; rejecting aggregation leads to incoherent practical decision-making. Human rights function as a necessary constraint on consequentialist reasoning, especially under uncertainty and when proposed actions are grotesquely harmful. Rules matter because deviations from good rules impose large long-run costs; maximizing sustainable growth is a rule worth following rather than continually re-litigating case by case. Markets and freer institutions generally outperform central planning, though government can still play important roles in science, infrastructure, public health, and coordination. The biggest threats to the future are not only climate change but also nuclear war, bioweapons, surveillance-enabled authoritarianism, and general failure to coordinate. Cowen is more pessimistic than some longtermists about space colonization, self-replicating probes, and a civilization that expands far beyond Earth; he expects many risks and bottlenecks to intervene. Alcohol and other addictive technologies can materially reduce innovation and growth, so personal norms around substance use have civilizational implications. Philanthropy should fund neglected, unusual, or hard-to-measure opportunities, with strong emphasis on the right people and minimal bureaucracy.

Data Points: Number of books Tyler Cowen has written: 14 - Rob introduces Cowen as a prolific author before the interview begins. Episode number cited for Conversations with Tyler favorites: 5, 15, 26, 45 - Rob recommends several earlier Tyler podcast episodes. Average civilization duration mentioned: 400 years - Cowen notes that the average civilization endured only about 400 years and that the figure appears to be declining. Annual growth rate cited: 2.7% - Cowen says the U.S. economy is growing around 2.7% year over year, which he regards as poor relative to past performance. Deaths from air pollution: 6–7 million per year - Cowen cites this estimate when discussing the seriousness of pollution and climate-related policy. Human population example for the future: 10 billion people for centuries - Cowen uses this as a rough scenario to illustrate the size of future human populations and moral importance of growth. Chance of a major conflict within 30 years: 5% - Cowen says he thinks the chance of a major nuclear or catastrophic conflict within 30 years is easily around this level. Chance of extinction or collapse in 100 years: Below 1% annual risk, but non-zero - Cowen says annual nuclear/ extinction risk is under 1%, while still worrying about long-run accumulation of risk. Probability of severe decline or return to a poorer stage in 1,000 years: At least 10% chance - Cowen suggests a significant chance of regression or very destructive instability over a millennium. Pollution deaths vs climate deaths: 6–7 million vs much less from climate presently - Used to argue that conventional air pollution is an underappreciated immediate killer compared with current climate impacts.

Pivotal Quotes: "We can already see that three key questions should be elevated in their political and philosophical importance. Namely, number one, what can we do to boost the rate of economic growth? Number two, what can we do to make civilization more stable? And number three, how should we deal with environmental problems?" — Tyler Cowen: Cowen summarizes the core priorities of Stubborn Attachments. "If you apply a discount rate of 5%, 7%, whatever it's going to be, you can end up with the result that, say, a nickel today is worth more than saving the existence of the entire world hundreds of years from now." — Tyler Cowen: He criticizes applying financial discounting to moral value across time. "We have Paleolithic emotions, medieval institutions, and godlike technology, and it's terrifically dangerous." — Rob Wiblin (quoting E.O. Wilson): Rob uses this as a challenge to Cowen’s growth-centric worldview.

Implications: Listeners should expect a strong case for growth-oriented liberalism, but only inside hard moral and institutional constraints. For policy and careers, the biggest leverage may lie in innovation, coordination, and stability—not only direct altruism or redistribution.

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