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Bitcoin
Jan 2009· Asset or instrument
Experts disagreeEconomists or investors genuinely disagree.
The first cryptocurrency, created by the pseudonymous Satoshi Nakamoto, with its supply capped at 21 million coins.
See it on the Money & Finance map →How it works
Miners run computers that race to solve a math puzzle ('proof of work'); the winner adds a block of transactions about every 10 minutes and earns new bitcoin. That reward halves about every four years (to 3.125 coins in April 2024), so issuance shrinks toward the cap, reached around 2140. The first known purchase: two pizzas for 10,000 bitcoin in May 2010. Bitcoin topped about $126,000 in October 2025, but it has fallen 75–85% several times, including 2018 and 2022.
Why it matters
It created a new asset class and the blockchain design behind all later crypto; some investors treat it as 'digital gold'.
Think of it like
Its risk profile is like a building that can lose three-quarters of its value in a bad year, then recover: drawdown at extreme scale.
Facts, rules and data
Nakamoto's 2008 white paper, the public blockchain back to January 3, 2009, and the Cambridge Bitcoin Electricity Consumption Index on mining's energy use.
Debates and risks
Whether it becomes a lasting store of value is debated; about a million coins believed mined by Satoshi have never moved.
Inside this (1)
Connections (4)
▸Bitcoin was created as an alternative to Fiat money: currency backed by law and trust, not metalFact, law or data
The connection
Bitcoin was designed in 2008, amid bank bailouts, as money no government or central bank could print or control. Where fiat supply is set by central-bank decisions, bitcoin's is fixed by code at 21 million coins, and payments move between users without a bank. Its very first block carries a newspaper headline about a bank bailout.
When and why
Satoshi Nakamoto's white paper appeared October 31, 2008; the first block, January 3, 2009, quotes The Times: 'Chancellor on brink of second bailout for banks'.
How we know
The headline is readable in the first block's data; in 2009 Nakamoto wrote that 'the history of fiat currencies is full of breaches of that trust.'
Debates and risks
Economists argue a fixed supply is a flaw: prices would tend to fall over time and there would be no lender of last resort in a panic. Supporters see that as the point.
▸Bitcoin was the first CryptocurrencyFact, law or data
The connection
Bitcoin solved the 'double-spend' problem, stopping the same digital coin from being spent twice, without a central authority, using a public ledger kept honest by proof-of-work mining. Earlier digital cash, such as 1990s DigiCash, needed a company in the middle. Every later cryptocurrency copied or modified its design, and bitcoin still makes up about 60% of crypto's total value.
When and why
Satoshi Nakamoto's network went live January 3, 2009; the first alternative coins, such as Namecoin and Litecoin, followed in 2011.
How we know
Bitcoin's open-source code and full transaction history are public; its white paper cites earlier ideas such as Wei Dai's b-money and Adam Back's Hashcash.
Debates and risks
Satoshi's identity remains unknown; a UK court ruled in 2024 that Craig Wright, who claimed the title, is not Satoshi.
▸Bitcoin draws on ideas from Austrian school (Mises, Hayek)Mainstream view
The connection
Bitcoin's fixed cap of 21 million coins echoes Austrian ideas: money should be scarce and outside government control, and central-bank credit creation breeds booms, busts and inflation. Hayek's 1976 proposal for competing private currencies is a favorite text among Bitcoin advocates. Many Austrians, though, doubt an asset with no earlier use can become money.
When and why
Bitcoin's 2009 launch after the financial crisis; Austrian-leaning writers such as Saifedean Ammous (The Bitcoin Standard, 2018) popularized the connection.
How solid is the link?
Bitcoin's design is public in Satoshi Nakamoto's 2008 white paper and code; the Austrian influence shows in supporters' writing more than in the paper itself.
Debates and risks
Whether Bitcoin fits Mises's 'regression theorem', which says money must grow out of an earlier commodity use, splits Austrian economists themselves.
▸Spot bitcoin ETFs (2024) hold BitcoinFact, law or data
The connection
Each fund buys and holds actual bitcoin through custodians, mainly Coinbase, so money flowing into ETF shares becomes bitcoin purchases. That put bitcoin in ordinary brokerage accounts and IRAs. By 2025 the US funds held more than 1 million bitcoin, over one in twenty coins in existence; BlackRock's IBIT is the largest. Fund flows now visibly move prices.
When and why
Since January 2024; issuers include BlackRock, Fidelity, Grayscale, Bitwise, Ark and Franklin Templeton.
How we know
Funds publish their bitcoin holdings daily, and some custodian wallet addresses are visible on the public blockchain.
Debates and risks
How much ETF flows drive bitcoin's price versus follow it, and whether owning bitcoin through Wall Street funds undercuts its original no-middleman purpose.