Transcript:
Introduction
Hey, guys. Mike Frontera here, back with another Retirement Theory video. Today, I’m tackling a big question: How does Bitcoin work? Whether you’ve heard of Bitcoin from the news, friends, or elsewhere, it’s a fascinating topic that is changing the financial landscape. This is not a deep dive into Bitcoin’s inner workings; instead, I want to provide enough basics so you can understand what it is and why people own it. If you’re already a hardcore Bitcoin investor, this video might not be for you. Also, this is not an endorsement of Bitcoin or cryptocurrency as an investment—it’s purely educational.
What Is Bitcoin?
Bitcoin is like any other currency you’re familiar with. It’s designed to be a store of value that you can use to exchange for goods or services in the marketplace. What makes Bitcoin unique is that it has no physical coins, gold, or tangible assets representing it. Transactions happen directly and securely between two parties without involving banks, governments, or financial intermediaries. It’s the only type of currency that operates this way.
With traditional currency, direct transactions require physically handing over a bill, gold, or something similar, which presents logistical challenges. Bitcoin, as a digital currency, solves this problem.
How Does Bitcoin Work?
To answer this, let’s go back to the beginning. Bitcoin was created in 2009 by an anonymous person or group of people under the name Satoshi Nakamoto. Satoshi developed the framework for how this digital currency would operate, including its creation process and how transactions could occur directly and securely. Satoshi then wrote the programming that built the Bitcoin network where transactions and Bitcoin creation take place.
At the core of Bitcoin and all digital currencies is the blockchain. Understanding the blockchain is key to grasping Bitcoin. A blockchain is essentially a transaction history that records all the transactions on a network. For Bitcoin, this means the full transaction history, which as of November 2024, is about 617GB. That’s large, but manageable with today’s computers.
The blockchain is a plain-text file, so it doesn’t take much computer space. However, printing the entire ledger would require about 137 million pages. Stacked, this would reach 45,000 feet high—1.5 times the height of Mount Everest.
How Bitcoin Tracks Ownership
Bitcoin doesn’t store balances. Instead, ownership is determined by tracing the transaction history. For example, if Jerry wants to send Jenny 2.5 bitcoins, Jerry’s anonymous Bitcoin wallet transfers 2.5 bitcoins to Jenny’s wallet. This transaction is recorded permanently in the blockchain. After the transaction, Jerry has 1.5 bitcoins, and Jenny has 3.5 bitcoins. Bitcoin’s software calculates these balances from the transaction history, so users don’t need to manually trace through the ledger.
Who Controls the Blockchain?
The blockchain is a distributed ledger, meaning anyone can access the entire transaction history at any time. Imagine a giant spreadsheet constantly updated and redistributed to everyone. As new transactions occur, they are verified and added to blocks of about 2,000 transactions. These blocks are linked chronologically, forming a chain—hence the name blockchain. Once added, blocks cannot be changed and are distributed across the network.
Why Do People Verify Transactions?
Satoshi Nakamoto designed Bitcoin so that those who verify transactions are rewarded with fees. However, not every computer in the network certifies every block. Instead, one computer, known as a miner, is chosen to certify each block. Miners solve mathematical puzzles to close their blocks, often requiring trillions of attempts. The miner who solves the puzzle first is rewarded with newly created Bitcoin. This process is how new bitcoins are generated.
What Gives Bitcoin Its Value?
Bitcoin is essentially a digital record on an unchangeable transaction history. Its value, like many currencies, is based on collective belief. Bitcoin’s popularity and acceptance have grown over time, increasing confidence that others will accept it as currency.
In its early days, Bitcoin was worth less than a penny. In May 2010, a developer famously traded 10,000 bitcoins for two pizzas. Over time, Bitcoin’s unique features—security, anonymity, and scarcity (there will only ever be 21 million bitcoins)—have increased its acceptance and value. As of December 2024, Bitcoin is worth nearly $100,000 per coin.
Conclusion
That’s the basics of how Bitcoin works. Got questions? Feel free to reach out at RetirementTheory.com or email me at Mike@RetirementTheory.com. Thanks for watching, and see you next time!