The Bitcoin Standard

good purchased not to be consumed (a consumption good), nor to be employed in the production of other goods (an investment, or capital good), but primarily for the sake of being exchanged for other goods.

Being a medium of exchange is the quintessential function that defines money

Bitcoin is the newest technology to serve the function of money—an invention leveraging the technological possibilities of the digital age to solve a problem that has persisted for all of humanity’s existence: how to move economic value across time and space.

The only way around this is through indirect exchange: you try to find some other good that another person would want and find someone who will exchange it with you for what you want to sell. That intermediary good is a medium of exchange,

First, there is the lack of coincidence in scales: what you want may not be equal in value to what you have and dividing one of them into smaller units may not be practical. Imagine wanting to sell shoes for a house; you cannot buy the house in small pieces each equivalent in value to a pair of shoes, nor does the homeowner want to own all the shoes whose value is equivalent to that of the house. Second, there is the lack of coincidence in time frames: what you want to sell may be perishable but what you want to buy is more durable and valuable, making it hard to accumulate enough of your perishable good to exchange for the durable good at one point in time. It is not easy to accumulate enough apples to be exchanged for a car at once, because they will rot before the deal can be completed. Third, there is the lack of coincidence of locations: you may want to sell a house in one place to buy a house in another location, and (most) houses aren't transportable.

but also the bigger the problem of coincidence of wants—what you want to acquire is produced by someone who doesn't want what you have to sell. The problem is deeper than different requirements for different goods, as there are three distinct dimensions to the problem.

This book does not offer investment advice, but aims at helping elucidate the economic properties of the network and its operation, to allow readers an informed understanding before deciding whether they want to use it.

Sound money allows people to think about the long term and to save and invest more for the future. Saving and investing for the long run are the key to capital accumulation and the advance of human civilization. Money is the information and measurement system of an economy, and sound money is what allows trade, investment, and entrepreneurship to proceed on a solid basis, whereas unsound money throws these processes into disarray.

Bitcoin can be best understood as distributed software that allows for transfer of value using a currency protected from unexpected inflation without relying on trusted third parties. In other words, Bitcoin automates the functions of a modern central bank and makes them predictable and virtually immutable by programming them into code decentralized among thousands of network members, none of whom can alter the code without the consent of the rest.

On May 22, 2010, someone else paid 10,000 bitcoins to buy two pizza pies worth $25, representing the first time that bitcoin was used as a medium of exchange. The token had needed seven months to transition from being a market good to being a medium of exchange.