Six properties decide how well something works as money. Scarcity: how hard is it to increase the supply? Durability: does it survive time and handling? Divisibility: can it settle both a coffee and a house? Portability: what does it cost to move value across distance? Recognisability: how cheaply can a receiver verify it is genuine? Fungibility: is one unit interchangeable with another?
No form of money maximises all six. Gold is scarce and durable but expensive to move and hard for an ordinary person to assay. State money is portable and divisible but its supply is set by policy decisions rather than by a fixed rule. Bitcoin is divisible to eight decimals and cheap to verify with software, but its purchasing power has been highly volatile and it depends on electricity and connectivity.
Judging money means weighing trade-offs, not declaring a winner. What Bitcoin changes is who controls the scarcity property: a published rule enforced by every participant, instead of an institution's decision.
Explain more simply
Good money is hard to make more of, does not rot, splits into small pieces, travels easily, and is easy to check for fakes.
Gold is great at not rotting and hard to make more of, but terrible to send abroad. Bank money travels instantly but can be created by decision. Bitcoin tries to combine the strong points.
Real-world analogy
Think of money like a container for value. Gold is a heavy safe, bank money is a courier service you must trust, Bitcoin is a public ledger anyone can audit.
Key facts
- One bitcoin is divisible into 100,000,000 satoshis.
- Bitcoin's supply schedule is a consensus rule, not a policy target.
- Verification cost, not just scarcity, historically decided which money people trusted.
Common misconception
“Bitcoin is better money than everything else in every way.”
Bitcoin scores strongly on scarcity, divisibility and verifiability, and weakly on short-term price stability and on offline usability. Honest comparison means naming both.[1]
Go deeper
Verifiability is the property most often underestimated. Assaying gold requires equipment and expertise, which historically pushed people towards trusted custodians who issued paper claims, and those claims were then issued in excess.
A full Bitcoin node inverts that: verification is a software cost, not a trust relationship. Anyone can check every rule, including the total issued supply, with commodity hardware.
Quick check
Answer every question correctly (100%) to complete this lesson.
1.How many satoshis are in one bitcoin?
2.Which property made people historically rely on custodians for gold?
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Extra exam questions
Every question here counts towards your accuracy, XP and rank. No guessing: every answer is explained.
Quick check
Answer every question correctly (100%) to complete this lesson.
1.What does 'durability' mean as a property of good money?
2.What does 'portability' mean for money?
3.What does 'divisibility' mean for money?
4.What does 'fungibility' mean as a monetary property?
5.What does 'scarcity' mean as a property of good money?
6.What does 'verifiability' mean as a monetary property?
7.What does 'uniformity' mean in relation to units of money?
8.Why is 'recognizability' considered important for money?
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Sources
- Bitcoin: A Peer-to-Peer Electronic Cash System (2008), Satoshi Nakamoto
The original nine-page proposal. Describes proof of work, timestamping and the incentive model.
- Bitcoin developer documentation, bitcoin.org / Bitcoin Optech glossary