20 million down. A million to go.

The laws of mathematics are not up for debate. Two plus two equals four. The circumference of a circle is 2πr. These rules hold regardless of who’s in charge.

Money has never worked that way. Until now. For the first time in history, we have a new form of money governed by mathematics rather than humans. Bitcoin follows a fixed set of rules that no politician, central bank, or CEO can change. And earlier this month, those rules delivered a historic milestone. They ushered in the 20 millionth bitcoin.

🧠 Scarcity, on a schedule

In January 2009, Satoshi Nakamoto, Bitcoin’s anonymous creator, set a perpetual clock in motion. Every ten minutes, it ticks, releasing a fixed and shrinking amount of new bitcoins into the world. It has never been late. It has never been reset. It cannot be adjusted.

Satoshi programmed this schedule so that 95% of the total 21m supply would incrementally enter into circulation during the project’s first 17 years. The remaining million coins will be slowly released over the next 114 years in amounts so small they’ll eventually barely register.

Bitcoin’s supply works like a countdown. 

When the network launched in 2009, 50 new coins were created every ten minutes. Four years later that number dropped to 25. Then 12.5. Then 6.25. Today the network produces 3.125 bitcoins every ten minutes. Every four years, automatically, the rate gets cut in half.

Unlike fiat currencies, whose supply routinely expands at the discretion of central banks, Bitcoin’s supply moves predictably in one direction. Down. 

You saw the impact of extreme money printing just a few years ago. During the pandemic, governments created enormous amounts of new money to keep businesses open and households afloat. The inflation that followed was a reminder of what happens when supply has no ceiling.

Bitcoin has a ceiling. It is capped at 21 million, and the supply schedule cannot change in response to a crisis or political decision. 

But the rate at which new supply enters the market is only part of the story. Even though 95% of bitcoins are already in circulation, that doesn't mean they are available for purchase.

Why most bitcoin isn’t actually for sale

According to River Financial, a large share of Bitcoin’s existing supply is effectively off the market. Most bitcoins are held by individuals who aren’t likely to part with their stack any time soon, or locked inside long-term investment vehicles built to hold bitcoin, not trade it. Here’s a snapshot of the current ownership distribution:  

• Individuals: 13M bitcoins

• ETFs and Funds: 1.6M bitcoins

• Corporate Treasuries: 1.2M bitcoins

• Governments: 650K bitcoins

Then there’s the supply that's simply gone. 

At least 1.5m bitcoins appear to be permanently lost, victims of forgotten passwords and discarded hard drives. Another one million coins assumed to belong to Satoshi Nakamoto haven’t moved since 2010. For all practical purposes, these coins live outside the circulating supply.

Glassnode estimates only about 30% to 40% of all bitcoins are readily available for purchase or trading. On most days, less than one percent of the total supply actually changes hands.

Why Bitcoin’s supply constraints really matter 

Even though we're in the final stretch of Bitcoin’s supply schedule, Bitcoin’s price still has plenty of room to grow. Not just because supply is shrinking, but because demand is growing. 

Earlier this year, financial advisors from Bank of America joined JPMorgan and Citi in recommending bitcoin allocations to clients. Even modest allocations in the 1-4% range could translate into hundreds of billions of dollars in new demand in the years ahead. And that’s just from private investors. It doesn’t account for growing demand from corporations, pensions, sovereign wealth funds, or governments.

When demand for an increasingly scarce asset rises, price tends to follow. Not because of investor sentiment, but because of basic math and supply-demand dynamics.

Bottom Line

Bitcoin didn’t reach the 20 million milestone by chance. It reached it by following a set of rules that have been enforced automatically for more than 17 years without human intervention. That kind of consistency in an otherwise unstable world gives Bitcoin’s scarcity its credibility

Every ten minutes, Bitcoin’s clock ticks again, like a heartbeat. And each time it does, the world’s first truly finite digital asset becomes a bit scarcer.

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