I work in the crypto self-custody space, and since 2018 I have watched the "Bitcoin will fail" thesis come back with every downturn. Through each one the protocol kept producing blocks and the supply schedule kept tightening. Bitcoin sold for about $3,200 on 15 December 2018 (Blockchain.com) and about $82,900 on 11 October 2026 (Blockchain.com), so anyone who bought in 2018 and held is ahead.
TL;DR
Bitcoin is sound money written in code. Every node enforces a 21 million cap (Bitcoin Core amount.h). The chain has run since 3 January 2009 (mempool.space) through three documented consensus incidents, in 2010, 2013 and 2015, and each was resolved. US spot bitcoin ETFs have taken in about $57.2 billion net since January 2024 (Farside Investors). New issuance runs at about 0.82% a year (Blockchain.com), below the ten-year money growth of the dollar, the euro and the franc shown further down. In my view 17 years of blocks have answered the "will it fail" question.
The promise has held
Satoshi Nakamoto, a pseudonymous developer, announced the Bitcoin whitepaper on 31 October 2008 (cryptography mailing list) and mined the genesis block on 3 January 2009 (mempool.space). The premise: a currency whose supply no government can inflate, whose accounts no bank can freeze, and whose ledger no institution can rewrite. In my view that premise has held through every macro shock since.
Bitcoin's daily price first closed above $100,000 on 9 December 2024 (Blockchain.com). On 10 January 2024 the SEC approved eleven spot bitcoin products, among them funds from BlackRock, Fidelity and Invesco (SEC release 34-99306). Bitcoin's market capitalisation was about $1.68 trillion on 11 October 2026 (CoinGecko). The network ran at about 1,000 exahashes per second that day (mempool.space).
The sound money thesis
In my view, governments debase their currencies when it suits them, to pay for wars or to rescue banks. If you hold savings in those currencies, you watch your purchasing power erode.
Satoshi Nakamoto designed Bitcoin to make that impossible.
The 21 million cap is not a policy anyone can reverse. It is a constant in the consensus code (Bitcoin Core amount.h) that 25,305 reachable nodes enforce (Bitnodes). Changing it would need those independent operators to install new rules at the same time. That has never happened, and I do not expect it to.
Issuance is fixed in advance and falls over time. The block subsidy halves every 210,000 blocks (Bitcoin Core GetBlockSubsidy). After the April 2024 halving new bitcoin enters circulation at about 0.82% a year of the 20,096,750 BTC in existence (Blockchain.com). Over the past ten years US M2 grew about 6.0% a year (FRED M2SL), euro-area M3 about 4.7% a year (ECB Data Portal) and Swiss M2 about 1.9% a year (SNB). The next halving, around April 2028, cuts issuance to about 0.4% a year (Bitcoin Core GetBlockSubsidy). The schedule is public and runs without anyone deciding the rate.
Sound money is money no one can arbitrarily inflate or devalue. In my view Bitcoin is the first digital money that meets that test.
Inflation proved the point
Between 2020 and 2022 central banks ran an experiment in printing money at scale. The Federal Reserve's balance sheet grew from about $4.2 trillion in January 2020 to nearly $9.0 trillion in April 2022 (FRED WALCL). US consumer prices rose 9.1% in the year to June 2022 (FRED CPIAUCNS). Euro-area HICP inflation peaked at 10.6% in October 2022 (Eurostat). Even Switzerland, one of the most stable monetary environments on earth, saw consumer prices rise 3.5% in the year to August 2022 (SNB).
If you held savings in cash or bonds, this was a slow transfer of wealth away from you.
The money supply keeps growing. US M2 stood at $23.34 trillion in August 2026, 5.7% more than a year earlier (FRED M2SL), and US consumer prices rose 3.4% in the year to August 2026 (FRED CPIAUCSL). Euro-area M3 reached €17.65 trillion in August 2026 (ECB Data Portal), and Eurostat's estimate of euro-area inflation for September 2026 is 3.8% (Eurostat). Swiss inflation was 0.8% in August 2026 (SNB), while Swiss M2 grew 4.0% over the same year (SNB).
Bitcoin's supply schedule did not change by a single satoshi during any of this. While central banks did what Satoshi Nakamoto designed Bitcoin to resist, the network kept issuing coins on the schedule it has always followed.
In my view that makes Bitcoin a savings technology: a way for ordinary people to hold value outside systems that have put institutional stability ahead of savers' purchasing power.
The ETF era
For years critics argued that Bitcoin was retail speculation and that serious institutional capital would never touch it. On 10 January 2024 the US Securities and Exchange Commission approved the first spot bitcoin exchange-traded products in the United States (SEC release 34-99306). BlackRock's iShares Bitcoin Trust, the Fidelity Wise Origin Bitcoin Fund and the Invesco Galaxy Bitcoin ETF were among them. See Bitcoin ETFs for how these products work.
By 9 October 2026 US spot bitcoin ETFs had taken in about $57.2 billion net (Farside Investors). Americans buy them in the same brokerage accounts they use for S&P 500 index funds. In my view Wall Street does not build that plumbing for assets it expects to disappear.
Bitcoin's share of the total crypto market was 59.6% on 11 October 2026 (CoinGecko).
What the network looks like
The figures below describe infrastructure that has been running for years.
Mining difficulty was 86.4 trillion at the April 2024 halving block (mempool.space). It peaked at 156.0 trillion in October 2025 and stood at 132.7 trillion on 11 October 2026 (mempool.space). The higher the difficulty, the more hardware and energy an attacker needs to rewrite blocks.
The halving cut the block subsidy in half, and hashrate kept growing for the next 18 months. Miners did not leave.
Bitnodes counted 25,305 reachable full nodes on 11 October 2026 (Bitnodes), each verifying every transaction on its own. No single government can shut the network down by raiding a data centre. The Lightning Network had about 19,800 public channels that day (1ML), settling small payments on top of Bitcoin's base layer.
Bitcoin's main chain has produced blocks since January 2009 through three documented consensus incidents. In August 2010 block 74638 created over 184 billion bitcoins through an integer overflow, and a fixed client was out within five hours (Bitcoin Wiki, NVD CVE-2010-5139). In March 2013 a database limit in older clients split the chain until two large pools downgraded to the older version (BIP 50), and BIP 50 records one large double spend made as an experiment. In July 2015 some miners built on invalid blocks without checking them, and bitcoin.org told users to wait for extra confirmations (bitcoin.org alert). In my view public incident response like this is a strength.
Self-sovereignty without permission
Bitcoin matters most where financial systems have failed hardest.
Argentina is the clearest case. The peso was worth 15.18 to the US dollar on 14 October 2016 (BCRA) and 1,517 on 9 October 2026 (BCRA), a loss of 99% of its dollar value in ten years. For years capital controls (the cepo cambiario) capped how many dollars citizens could buy. The central bank lifted that cap for individuals on 14 April 2025 (BCRA Comunicación A 8226), but a rule can be reimposed as fast as it was lifted. In my view Bitcoin is a way out of the currency that needs neither a bank account nor approval from an institution that might later freeze access. It runs on a network no single authority controls.
The FTX collapse in November 2022 made the same point from the other side. US prosecutors said FTX's founder stole "over $8 billion of his customers' money" (US Attorney SDNY), money customers had trusted to a custodian. Bitcoin you hold in self-custody is not a liability on anyone's balance sheet. "Not your keys, not your coins" stopped being a theoretical warning. FTX customers learned it by losing money.
Self-custody is the point. Bitcoin exists so you can hold value without counterparty risk.
What Bitcoin refuses to do
Bitcoin's base layer has a deliberately limited script language. It handles multisignature wallets and time locks (BIP 65), but it does not host DeFi protocols or general-purpose applications. No yield products are native to the base chain.
The limit is a design choice.
Bitcoin's developers keep the base layer to one job: money with a fixed supply that anyone can reach and no one can censor. Every feature added to a base layer is a potential attack surface and a potential failure mode. In my view Bitcoin's developers chose security and simplicity over features, and the network has kept its core promise because of it.
In my view Bitcoin leads as sound money because it does one job, settlement, and leaves everything else to layers built on top.
Where Bitcoin goes from here
Nation-state adoption has started. El Salvador's National Bitcoin Office publishes addresses holding about 7,800 BTC as of 11 October 2026 (bitcoin.gob.sv). The United States set up a Strategic Bitcoin Reserve by executive order on 6 March 2025 (The White House). In my view an asset no government issues and no government can sanction has strategic value, and more states will notice.
The Lightning Network settles payments on top of Bitcoin's base layer, which makes remittances and small payments practical without crowding the main chain.
The next halving, around April 2028, reduces issuance from about 0.82% to about 0.4% a year (Bitcoin Core GetBlockSubsidy). Each halving makes the supply schedule more predictable and harder to argue with.
What 17 years have settled
Seventeen years of blocks now make the case on their own.
Bitcoin rose from about $615 on 11 October 2016 to about $82,900 on 11 October 2026 (Blockchain.com), through drawdowns of 83% in 2018 and 77% in 2022 from its previous highs (Blockchain.com). It has produced blocks for 17 years through three documented consensus incidents. US spot ETFs have drawn about $57.2 billion in net inflows (Farside Investors). In my view it has given people a savings instrument in countries where banks and governments failed them.
The sound money thesis stopped being a prediction once Bitcoin came through its first decade of macro shocks. BlackRock and Fidelity then built spot ETFs around the digital gold idea. The market capitalisation of about $1.68 trillion on 11 October 2026 (CoinGecko) reflects worldwide demand.
In my view the "will it work?" era is over.
This post is educational information about Bitcoin's monetary thesis, not investment or tax advice. Macro data shifts month to month, so verify every figure against the cited primary sources (mempool.space, CoinGecko, FRED, ECB, Eurostat, SNB) before acting on it. Bitcoin's price is volatile and past performance is not a guide to future returns. The Swiss tax answer in the FAQ rests on the ESTV working paper on cryptocurrencies of 14 December 2021.
New to Bitcoin? Start with Chapter 1.
Want the full picture? Read all 19 chapters free or order the physical book.
