# Bitcoin Explained

## Definition
Select a word to explore
Money
is
technology
for
storing
exchanging
and
measuring
value
Low hardness
Natural hardness
Absolute scarcity
Stock-to-flow ratio
Divisibility comparison
1 BTC = 100,000,000 Satoshis
0.00000001 BTC
Smallest unit (1 sat)
Analogy
Problems Solved
The Problems Money Solves
Money is civilization's most fundamental technology. It solves multiple coordination problems that would otherwise make complex societies impossible.
Coincidence of Wants
In a barter economy, you need to find someone who has what you want AND wants what you have. Money provides a universal medium so anyone can trade with anyone.
Transfer Value Across Time
Money allows you to save your labor energy today and spend it decades later, enabling humans to plan, save, and invest in the future.
Transfer Value Across Space
Money lets you earn value in one location and spend it anywhere else, powering global specialization and trade.
Economic Calculation
Money creates prices, allowing entrepreneurs to rationally allocate resources and distinguish productive ventures from wasteful ones.
Indivisibility of Labor
A surgeon cannot trade 1/100th of an operation for groceries. Money lets you sell labor in discrete chunks and spend the proceeds in tiny increments.
Money Enables Civilization
Civilization is the process of freeing the individual from coercion. Digital, unconfiscable money allows people to store life energy beyond the reach of violence.
Technology
Compare monetary technology.
Money is a technology, and like any technology it can be measured. Six attributes decide how well it works.
Fiat
Political money
![fiatImage](https://d6yvfl55smr7u.cloudfront.net/assets/g7dks54p-1790358120876-removed-background.png)
Gold
Natural money
![goldImage](https://d6yvfl55smr7u.cloudfront.net/assets/u692w6z4-1790358122803-removed-background.png)
Bitcoin
Digital money
![bitcoinImage](https://d6yvfl55smr7u.cloudfront.net/assets/a3e2ool1-1790358125259-removed-background.png)
| Attribute | Note | Fiat | Fiat Score | Gold | Gold Score | Bitcoin | Bitcoin Score |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Scarcity | How hard is it to make more? | Unlimited supply | 1 | ~1.5% new supply a year | 4 | 21 million, fixed forever | 5 |
| Durability | Does it survive time? | Paper decays, banks fail | 2 | Effectively indestructible | 5 | Pure information, endlessly copied | 5 |
| Portability | How easily does it move? | Fast, but permissioned | 3 | Armored trucks and days | 1 | Anywhere on Earth in minutes | 5 |
| Divisibility | How small can it go? | 2 decimal places | 3 | Costly to split and assay | 2 | 100,000,000 satoshis | 5 |
| Verifiability | Can you prove it is real? | Trust the issuer | 2 | Requires assay equipment | 2 | Anyone verifies in seconds | 5 |
| Fungibility | Is every unit the same? | Accounts can be frozen | 3 | Purity varies by bar | 4 | Every satoshi identical | 4 |
Gold beat fiat on scarcity but lost on portability, and that single weakness is what allowed paper claims, and then unbacked paper, to replace it. Bitcoin is the first money that is strong everywhere at once.
Storing value
A place to put your time.
To hold value across decades, money must be hard to create. Stock-to-flow measures exactly that: how many years of production it would take to double the existing supply.
Fiat
~1-2
Supply can double on a policy decision
Gold
~60
Sixty years of mining to double the stock
Bitcoin
~120
Rising forever, toward infinity
The inflation tax
M2 money supply has grown roughly 400% since 2000. The same dollar buys a fraction of what it once did. Nobody voted for it and no bill was ever sent, yet every saver paid it.
Enforced by mathematics
Every 210,000 blocks, roughly four years, Bitcoin's new issuance cuts in half. The schedule is not a promise from an institution. It is arithmetic anyone can audit.
Exchanging value
Value that moves like information.
Money has always been layered. A scarce base layer settles large amounts, and faster upper layers handle daily life. The system breaks when the upper layers stop being claims on anything scarce.
Layer 1
Bitcoin base layer
Maximally secure and decentralized. Final settlement, roughly seven transactions per second, trustless.
Layer 2
Lightning Network
Instant payment channels built on top. Near zero fees at enormous volume, settling down to Layer 1.
Gold's weakness
Heavy, slow, expensive to secure. Moving it internationally takes armored trucks and days. That friction is exactly what paper money was invented to solve.
Fiat's tradeoff
Digital rails made money fast, but every transfer now needs permission. Balances can be frozen, reversed or blocked.
Bitcoin's answer
Any amount, anywhere, to anyone. No intermediary, no permission, settlement in minutes.
Measuring value
A ruler that stops stretching.
Money is the measuring stick for every price in the economy. So what happens when the stick itself keeps changing length?
The elastic ruler
Imagine building a house with a tape measure that shrinks overnight. Today the beam is ten feet. Tomorrow the same beam reads twelve. Nothing about the beam changed. Planning becomes impossible.
Fiat: the ruler stretches
When the supply expands, prices rise even though the goods are unchanged. You can no longer tell a real shortage from a monetary illusion.
Bitcoin: the ruler is fixed
One bitcoin is one hundred million satoshis. Forever. A known, verifiable, unchangeable schedule makes honest calculation possible again, and lets technology show up as falling prices.
A four dollar coffee might cost 8,000 sats. You never needed a whole bitcoin to buy it.
Value
Time and energy, made abstract.
Before money can store, exchange or measure anything, it helps to know what that thing actually is.
Time
Every hour you work is an hour of a finite life. Time is the one resource no one can manufacture more of.
Energy
Labor, focus, creativity and care are all energy spent. Energy is what turns possibility into something real.
The carpenter
A carpenter spends eight hours building a table. The table now holds that value, but it cannot be traded for groceries, fuel and tuition at once. Money converts stored value into a form the whole world accepts.
Why it matters
If value is time and energy, then debasing money is taking someone's life back from them quietly. Sound money is how a person's work survives the decades.