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Happy whitepaper day! I asked AI to describe the document to me like I was 6 and will now share with loved ones who still haven't gulped the orange pill. Feel free to do the same! Here it is: BITCOIN A new kind of money. A better way to own, keep and transfer value. Imagine you have a €20 note in your pocket. You own it. You can give it to your neighbour, exchange it for something, put it under your mattress or take it to another country. You don't need anyone's permission. Now imagine being able to do exactly the same thing with money on the internet. No bank. No payment company. No middleman. No one deciding whether you are allowed to send it. That is the idea behind Bitcoin. Bitcoin is a form of money that works directly between people, anywhere in the world. It is not controlled by a bank, a government or a company. It is operated by a worldwide network of independent computers that follow the same set of rules. But what makes Bitcoin truly remarkable is not just that it is digital. It is how it solves a problem that had troubled people for decades: How do you create digital money that cannot simply be copied and spent twice? Let's start at the beginning. 1. The problem with ordinary digital money When you send someone €100 through your bank, what actually happens? You don't physically hand them anything. Your bank changes some numbers in its records. The bank says you have €100 less, and the other person has €100 more. You trust the bank to keep the records correctly, to honour your payment and to allow you access to your money. The same is true of most payment apps. Behind the friendly little screen is a company keeping the records and deciding which transactions are accepted. This creates a problem. What if there were no bank? Who would keep the records? How would everyone agree on who owns what? And how would we prevent someone from spending the same digital money twice? Think about sending a photograph by email. You send a copy, but you still have the original. The person receiving it has another copy. That works perfectly well for photographs. It does not work for money. If you could copy a €100 digital coin and spend it ten times, it would no longer be worth €100. Bitcoin was designed to solve precisely this problem. 2. Bitcoin: money that works without a bank In 2008, someone using the name Satoshi Nakamoto published a short document describing a new electronic cash system. In January 2009, Bitcoin began operating. The breakthrough was surprisingly simple in principle: Instead of trusting one bank to keep the records, thousands of independent computers around the world maintain and check the same public record. Think of it as a giant shared account book. Everyone can check the book. Nobody needs to ask a bank for permission to see it. And no single person or company gets to secretly rewrite it. When Alice sends Bob some bitcoin, the network checks that Alice really has the bitcoin she wants to send and that she hasn't already spent it. Once the transaction is confirmed and recorded, Bob can see that he has received it. No bank needs to approve the transfer. No company needs to be open. No border needs to be crossed by a physical object. The network does the work. 3. How does Bitcoin know who owns the money? This is where something called cryptography comes in. Don't worry about the name. The idea is quite straightforward. Imagine you have a very special key that only you possess. That key allows you to authorise the movement of your bitcoin. You also have an address that you can share with other people so they can send you bitcoin. Think of the address as your letterbox and your private key as the only key that can authorise spending what is inside. When you send bitcoin, your wallet uses your private key to create a digital signature. The network can check that the signature is genuine without ever seeing your private key. This is clever because you can prove that you have the authority to spend your money without revealing the secret that gives you that authority. And here is something important: Your bitcoin is not physically stored inside your phone or computer. Your wallet holds the keys that allow you to control bitcoin recorded on the Bitcoin network. You can change phones, lose a computer or move to another country. Your bitcoin remains on the network. What matters is retaining control of your recovery information and private keys. That is what ownership means in Bitcoin. 4. How does Bitcoin prevent someone from cheating? Remember our giant shared account book? Bitcoin organises transactions into groups called blocks. Think of each block as a new page in the account book. Once a page is accepted, the next page refers back to it. Each page is connected to the one before it, forming a chain. This is why it is called a blockchain. But how do we know that someone cannot simply create a fake page? Bitcoin uses a system called Proof of Work. Imagine thousands of people competing to solve an extremely difficult mathematical puzzle. The first one to find a valid solution earns the right to propose the next page of transactions. Other computers independently check the answer. If it is valid, they accept the block and continue building on it. The process requires real computing work and electricity. Creating a dishonest version of the record would require an enormous amount of computing power, especially as more blocks are added. This makes cheating extraordinarily expensive. The important point is that Bitcoin does not rely on someone promising to be honest. It makes dishonesty costly and independently verifiable. And because thousands of computers around the world check the rules, no single computer gets to decide what is true. 5. Who controls Bitcoin? This is one of the most beautiful parts. Nobody does. There is no Bitcoin headquarters. No CEO. No central bank. No company that owns the network. There are different participants, each doing a different job. Users send and receive bitcoin. Nodes check transactions and blocks against Bitcoin's rules. Miners compete to produce new blocks and secure the transaction history. These participants do not all have to trust one another. They simply follow the same publicly known rules. A miner cannot decide to create a billion extra bitcoins just because they want to. The other nodes would reject blocks that break the rules. A government cannot simply telephone Bitcoin headquarters and order the network to create more money. There is no headquarters to telephone. That is what decentralisation really means: control is distributed rather than concentrated in one organisation. 6. Why can't someone just print more Bitcoin? Now we come to one of Bitcoin's most important qualities. There will never be more than 21 million bitcoin. Not 22 million. Not 30 million. Not 100 million. The maximum supply is built into Bitcoin's rules. New bitcoin enters circulation through mining. Miners receive a reward for producing valid blocks. But that reward is not constant. Approximately every four years, after 210,000 blocks, the reward is cut in half. This event is called the halving. The reward started at 50 bitcoin per block. It subsequently became 25, then 12.5, then 6.25, and in 2024 it became 3.125 bitcoin per block. It will continue decreasing until the supply approaches its maximum of 21 million. Think about the difference. With ordinary government money, the people controlling the monetary system can increase the supply. With Bitcoin, the issuance schedule is known in advance and enforced by the network. Nobody gets to change the rules simply because it would be convenient. This gives Bitcoin something very special: Scarcity that is mathematical, predictable and independently verifiable. 7. Why does scarcity matter? Imagine two things. The first is a glass of water. There is plenty of water available, and more can be supplied. The second is a rare painting. There is only one original, and nobody can simply manufacture another identical original and expect it to have the same scarcity. Money works differently from both, but the principle of scarcity matters. If the amount of money increases much faster than the amount of goods and services available, each unit of money can lose purchasing power. This is one reason people experience inflation. Your grandparents may remember when a certain amount of money bought a great deal more than it does today. Bitcoin offers a different monetary arrangement. Its supply cannot be expanded at the discretion of politicians, central bankers or financial institutions. People can debate its market price, but nobody can secretly change its maximum supply. That is a remarkable property for money. 8. Why is Bitcoin better suited to being money? Good money should have several important qualities. Let's look at them. Scarcity Something that can be created endlessly is difficult to use as a reliable long-term store of value. Bitcoin has a maximum supply of 21 million. Divisibility You don't have to buy a whole bitcoin. One bitcoin can be divided into 100 million smaller units called satoshis. You can own a tiny fraction of a bitcoin, just as you can own a few cents rather than an entire dollar. Portability You can carry your bitcoin anywhere in the world using access to your wallet. You don't need to transport gold bars, carry bundles of cash or open a foreign bank account. Verifiability Anyone can independently check the Bitcoin transaction history and verify that the monetary rules are being followed. You don't have to take a bank's word for it. Durability Bitcoin is not a physical object that rusts, rots or wears out. Its network is maintained by computers distributed around the world. Transferability You can send bitcoin directly to another person, even if that person lives on the other side of the planet. Resistance to censorship No central payment company has the authority to approve or reject transactions on behalf of the entire Bitcoin network. If a valid transaction follows the network's rules and is accepted by miners, it can be confirmed without a bank's permission. Put these qualities together and you begin to understand why Bitcoin is so different from most forms of money. 9. Bitcoin compared with other forms of money Let's look at what we commonly use. Government-issued money Dollars, euros and other national currencies are useful for everyday transactions. But their supply can be increased by monetary authorities, and their purchasing power can decline over time. They depend on governments and central banking systems. Gold Gold has been valued for thousands of years. It is scarce, durable and difficult to produce. But it is heavy, difficult to transport in large quantities, inconvenient to divide and expensive to verify physically. Bitcoin combines some of gold's monetary qualities with the ability to transfer value digitally. Bank deposits Money in a bank account is a claim recorded by a financial institution. You rely on that institution to maintain your balance, process payments and provide access to your funds. Bitcoin allows you to hold and transfer value without needing a bank to maintain your account. Payment apps These make payments convenient, but they are generally just interfaces to traditional financial systems. The company behind the app controls access to the service. Bitcoin is different because the underlying monetary network does not belong to a company. 10. Can you send tiny amounts of money across the world? Yes. One bitcoin is divisible into 100 million satoshis. This means you don't need to be wealthy to use Bitcoin. You can own a small fraction, send a small amount or receive a small amount. And there are additional systems built on top of Bitcoin, such as the Lightning Network, which allow payments to move very quickly and cheaply. Think of the main Bitcoin network as the foundation and the Lightning Network as an additional payment layer built on top of it. Together, they make it possible to use bitcoin not just for saving, but also for everyday payments. 11. Why is Bitcoin so difficult to shut down? Imagine a bank. It has buildings, employees, computer systems and a central management structure. If the bank closes, its customers lose access to its services. Bitcoin is different. Its computers are distributed across the world. There is no single building, server or office that needs to remain open. Someone can switch off one computer. Other computers continue operating. Someone can shut down a mining operation. Other miners continue. Someone can disagree with the rules. They can run different software, but the rest of the network does not have to accept their changes. The network continues because it is supported by many independent participants. This is the strength of decentralisation. 12. What does it mean to truly own your money? For most of modern history, we have become accustomed to keeping our money in institutions. We deposit it in a bank. We trust a company to hold it. We trust governments to manage the currency. Bitcoin introduces a different possibility. You can hold your own keys and directly control your bitcoin. No bank account is required. No institution needs to maintain your balance. No company can simply change your bitcoin balance in its own database. You are responsible for your own money. This is a fundamental change in the relationship between people and the financial system. It is the difference between being allowed to use somebody else's financial infrastructure and actually controlling your own money. 13. The bigger picture: why Bitcoin matters Bitcoin is not merely a new way to make payments. It is a new way of organising trust. For thousands of years, money has depended on some form of central authority, whether that was a king, a government, a bank or another institution. Bitcoin introduces a monetary system in which people do not need to trust a central authority to maintain the supply of money or keep the transaction record. Instead, they can verify the rules themselves. Its supply is predictable. Its monetary policy is transparent. Its transactions are recorded on a public ledger. Its ownership can be controlled directly by individuals. And anyone with the necessary internet access and compatible software can participate. Think about what this means for someone living in a country with an unstable currency. Or someone who cannot easily open a bank account. Or someone who wants to send money to family in another country. Or someone who simply wants to save part of their life's work in something that cannot be diluted by an authority deciding to create more units. Bitcoin gives all these people access to the same monetary network. It doesn't ask where they were born, how wealthy they are or which bank they use. It follows the same rules for everyone. The simplest way to understand Bitcoin Imagine a form of money that: Nobody can print more of at will. Nobody owns or controls. You can send directly to another person. You can take anywhere in the world. You can divide into incredibly small amounts. Anyone can independently verify. Does not require a bank account. Cannot be arbitrarily changed by a company or government. That is Bitcoin. It is money governed by rules rather than rulers. And perhaps its greatest achievement is this: For the first time, we have a way to transfer and own digital value that does not require us to trust a powerful middleman. We don't have to ask someone to promise that our money is scarce. We can check. We don't have to ask someone to promise that our transaction was recorded. We can check. We don't have to ask someone to promise that the monetary rules haven't changed. We can check. That is the real innovation. Not just digital money. A monetary system based on mathematics, transparency, scarcity and individual ownership. Bitcoin: be your own bank. Based on the original 2008 paper by Satoshi Nakamoto, "Bitcoin: A Peer-to-Peer Electronic Cash System."