William Goetzmann: From Babylon to Bubbles — A 5,000-Year History of Finance (Investing in America Series) #632

Episode Summary

Executive Summary: Meb Faber interviews Yale finance historian Will Goetzmann about the deep history of money, corporations, bubbles, and investing behavior. Goetzmann argues that finance—especially compounding, credit, and corporate structures—made civilization and large cities possible, and that long-term equity investing remains the best default despite periodic bubbles and crashes.

Main Topics: Finance as a civilizational technology (Priority: 5/5): Goetzmann explains that finance is fundamentally about moving value through time via contracts, interest, and risk-sharing, which enabled cities, trade networks, and large-scale civilization. Ancient origins of compounding and credit (Priority: 5/5): The discussion begins with a Babylonian/Sumerian document that Goetzmann identifies as the first war record and the first known compound-interest calculation, showing how early civilizations already used financial math. Early corporations and limited liability (Priority: 5/5): He traces company structures back to medieval southern France and argues that features like dividends, boards, accounting, and limited liability existed centuries before modern Amsterdam markets. Historical bubbles and speculative innovation (Priority: 4/5): Goetzmann compares famous bubbles such as Dutch tulips and the 2020-era NFT boom, arguing bubbles reflect beliefs about the future and can coexist with real technological progress. Long-term stock market investing and patience (Priority: 5/5): He emphasizes that equity ownership has historically rewarded patient investors, while market timing is far less reliable than staying invested over multi-year horizons. Behavioral finance and emotions in markets (Priority: 4/5): Goetzmann discusses Yale’s long-running sentiment surveys and machine-learning analysis of investor language to study how fear, anxiety, and reason shape decisions. Purpose-driven portfolio construction (Priority: 5/5): He recommends building portfolios around specific goals and time horizons—near-term needs favor safer assets, while long-term goals justify greater equity exposure and global diversification.

Key Arguments: Finance is not just capital; it is the technology of contracting through time, pricing uncertainty, and allocating risk. Cities and large economies require financial systems because they must source resources from distant places and coordinate long supply chains. The first documented compound-interest calculation appears in an ancient Sumerian reparations bill, showing financial ideas are far older than modern markets. Corporate forms with board governance, accounting, dividends, and limited liability existed in medieval Europe before modern stock exchanges. Bubbles are rare but recurring; they often fund real innovation even when many projects fail. A market doubling in one year does not reliably predict imminent collapse; historically, patience over three to five years has usually rewarded equity investors. Investors should define the purpose of money first, then choose assets appropriate to that time horizon and risk tolerance. Emotions can materially affect market beliefs; investor sentiment can be parsed from language and is not fully explained by rational valuation alone. Global diversification still matters because the U.S. is not always the best-performing market, and currency/inflation erode purchasing power over time. Automatic, long-term retirement investing can be life-changing, as shown by Goetzmann’s own 403(b) experience and stock-market exposure over decades.

Data Points: Age of first war/compound-interest document: mid-2600s BCE, almost 5,000 years ago - Ancient Sumerian document described as the first war record and first compound-interest calculation Interest-rate example: nearly 30% - Used as a comparison to explain how compounding can explode over long periods Oldest company mentioned: 1372 to 1949; later privatized about 10 years ago - Company of the Bazacle in Toulouse, cited as an early corporation with modern-like features Old Yale bond: 1648 - Dutch parchment bond issued by a municipal water company to repair infrastructure NFT vs. tulip bubble comparison: NFT bubble slightly larger - Goetzmann says his NFT index beat Dutch Tulip Mania as a historical bubble Tulip Mania period: 1630s-1640s - Referenced as one of history’s biggest bubbles Stock market doubling follow-on probability: about 50-50 over the next year - Historical global-stock analysis after a one-year doubling Medium-term outcome after a market doubling: better after 3-5 years - Longer holding periods historically shift the odds toward positive outcomes Yale sentiment survey duration: 25 years - Monthly survey run for Robert Shiller’s behavioral finance work VIX example before war: just under 18 or 20 - Illustrative volatility level before the referenced Persian Gulf conflict VIX example during war: over 30 or 40 - Illustrative volatility increase during wartime Ancestral company name: Company of the Bazacle - Early French mill company still investable in modern form

Pivotal Quotes: "the basic Technology of finance is time, contracting through time." — Will Goetzmann: Explaining the core function of loans, savings, and future payment obligations "Bubbles are fascinating, but I bet if you think really hard, you're not going to be able to think of eight bubbles in history." — Will Goetzmann: Arguing that bubbles are memorable but historically rare "If you were allowed to let your credit card bill compound for 80 years, you'd get up into a huge number." — Meb Faber / Will Goetzmann: Discussing the power of compounding using modern consumer credit as an analogy

Implications: The episode argues for long-term, purpose-based investing, broad diversification, and respect for finance’s historical role in innovation. It suggests bubbles will keep appearing, but patient equity ownership and disciplined risk management remain the best path for most investors.