Wealth & Inequality: The Billionaire Question
Why Billionaires Don't Actually Have Billions
The number on the Forbes rich list is almost entirely fictional — and understanding why changes how you think about wealth, power, and taxation entirely.
The Idea
When a billionaire's net worth is reported, what you're really seeing is a valuation, not a balance. The vast majority of extreme wealth exists as ownership stakes in companies — shares that are, at any given moment, worth a certain amount according to the market. But markets are not warehouses. You cannot simply remove the value from them without disturbing it. If a founder owns 60% of a company valued at a hundred billion, and they try to sell even a fraction of that stake, the act of selling signals doubt, spooks other investors, and drives the price down. The wealth is simultaneously real and theoretical — real enough to borrow against at low interest rates, theoretical enough that it cannot be straightforwardly converted to cash without shrinking in the process. This matters because the standard political debate — 'should billionaires pay more?' — often assumes a pool of liquid cash sitting somewhere, waiting to be taxed. The actual structure of extreme wealth is far stranger. It lives in equity, in unrealised gains, in assets that are never sold and therefore never taxed under most income-based systems. This is not a loophole so much as a fundamental feature of how ownership and value interact. The billionaire question is not really about whether someone deserves their fortune — it's about whether our existing fiscal frameworks were ever designed to handle wealth at this scale and in this form.
In the World
In 2021, ProPublica obtained leaked tax records from some of the wealthiest people in the United States and published what became one of the most-read financial investigations in years. The finding that shocked readers wasn't the absolute numbers — it was the ratios. Between 2014 and 2018, one prominent tech founder paid almost nothing in federal income tax relative to the growth of his net worth, which had increased by tens of billions over the same period. Legally and entirely within the rules. The mechanism was straightforward: his wealth grew through the rising value of shares he hadn't sold. No sale, no realised gain. No realised gain, no income. No income, no income tax. Meanwhile, he could pledge those shares as collateral for low-interest loans — giving him access to enormous purchasing power without triggering a taxable event. This strategy, sometimes called 'buy, borrow, die,' has become standard practice at the top of the wealth distribution. The 'die' part is the final move: assets passed to heirs receive a 'stepped-up basis,' meaning the accumulated unrealised gains effectively vanish from the tax record. A fortune can grow for decades, change hands, and the gains may never be taxed at all. The ProPublica report wasn't about fraud. That was precisely the point — it was a portrait of a system encountering a class of wealth it was never quite built to see.
Why It Matters
Most of us think about money in terms of income — what comes in each month, what gets taxed, what's left over. The billionaire question forces a different frame: wealth as a structural position, not a flow of funds. Once you see that, you start to notice how many of our intuitions about fairness, contribution, and taxation are built around earned income — salaries, wages, profits from selling something — rather than the compounding appreciation of ownership. This isn't just an abstract policy concern. It shapes how we talk about redistribution, what we consider 'paying your share,' and what we imagine when we picture economic mobility. If the dominant form of extreme wealth is unrealised, illiquid, and self-perpetuating, then conversations about closing the gap between the very rich and everyone else require more than adjusting income tax brackets. You don't need to have a firm view on what should be done. But having a clearer picture of what's actually happening — that the richest people in the world often have very modest taxable incomes despite staggering net worths — is the prerequisite for thinking clearly about any of it.
A Question to Ponder
If the most powerful form of wealth is one that rarely needs to be spent or sold to sustain a life of enormous privilege, what would it mean to design a tax system that actually sees it?
Get a new one of these every morning.
Start learning with Thinkable