Warren Buffett has described American capitalism as a magnificent cathedral with a casino attached. Two cultures have always lived side by side: one built on ownership and patience, the other gambling on outcomes.
I am a Notre Dame football fan so my fall Saturdays now come with FanDuel and DraftKings in every commercial. I place the occasional bet myself when a line looks wrong, keep it small, and expect to lose it. It is entertainment and I don’t confuse it with investing.
The casino has learned to dress like the cathedral. Prediction markets such as Kalshi and Polymarket borrow the vocabulary of investing, while the math underneath belongs to a sportsbook. A Bloomberg analysis found that about half of Kalshi’s volume went into longshots priced at one-in-ten or worse. They paid off about 2% of the time and every $100 staked lost about $15 on Kalshi and $27 on Polymarket.
Brokers such as Robinhood earn a fee on every contract traded, so volume is the product. Gambling companies go further because they profit when customers lose. The New York Times reported that DraftKings built a model to score online casino customers by how much more they would likely lose after a promotion. DraftKings denies targeting customers by their losses, but a company handing out billions in promotions expects that money back. That story bothered me, because I have watched people in my own family lose their life savings to blackjack, slots, and lottery tickets back when the casino was a place you had to drive to. Now it’s in your pocket.
Every generation builds its own casino. In the 1890s, bucket shops let people bet on stock prices without owning a share. In the 1920s, it was stocks bought on thin margin. Since then it has been internet stocks, meme stocks, crypto, and now event contracts.
Many investors will never place a bet on a prediction market. But you don’t need a betting app to end up in the casino. Selling an index fund in a panic is a casino trade and so is buying a stock because it has gone up 10 days in a row or trading around every headline.
The cathedral runs on a different principle. A business turns capital into products, customers, jobs, and profits. Owners share in those profits two ways: dividends paid in cash and earnings reinvested to make the business larger and more valuable.
I teach this to my economics students with a simple example. If you and I both own shares of a company that grows its earnings, we both get wealthier. Neither of us had to lose for the other to win, which is what economists call a positive-sum game. If we bet against each other on Saturday’s game, one of us pays the other and the sportsbook takes its cut either way. That is a negative-sum game and no amount of skill at the table changes the total.
Time pulls the two in opposite directions. Each bet carries the house’s edge and the more bets you make, the more reliably that edge becomes your result. Ownership works the other way. On any single day the S&P 500 is close to a coin flip, yet since 1926 it has been positive in about three of every four calendar years and no rolling 20-year period has ended with a loss. History is not a promise, but time gives good businesses room to compound. And unlike a contract that expires worthless, the business is still there after its price falls.
These ideas are not new. Benjamin Graham taught investors to pay less than a business is worth so that being wrong is survivable, Philip Fisher taught them to favor quality and hold it, and Jack Bogle showed that every dollar of fees comes out of the owner’s return. Charlie Munger insisted temperament mattered more than intelligence and Buffett practiced all of it in public for sixty years. Their premise was the same: you are buying a piece of a business and the business has to do the work.
Compounding is the hardest part, because its greatest rewards arrive at the end. A hypothetical $100,000 earning 8% a year adds about $116,000 in the first decade and about $540,000 in the third. Most people understand that math but few give it the time it needs, partly because patience is impossible to show off. Nobody livestreams a dividend reinvestment, though Buffett comes close when he points out that Coca-Cola now pays Berkshire more than half its original purchase price every year.
Over my career I have helped a lot of families build wealth and almost none of them have a dramatic story about how they did it. They built careers that paid well, lived below their means for decades, and invested the difference. They bought good businesses, kept buying through the bad years, and left them alone long enough for the earnings to pile up. It is a boring way to get rich and it has given far more people a real chance than any longshot ever has.