Currency - money (https://en.wikipedia.org/wiki/Money https://en.wikipedia.org/wiki/Money) - usually has three "primary roles": 1. Unit of Account (https://en.

Currency - money (https://en.wikipedia.org/wiki/Money https://en.wikipedia.org/wiki/Money) - usually has three "primary roles": 1. Unit of Account (https://en.wikipedia.org/wiki/Unit_of_account https://en.wikipedia.org/wiki/Unit_of_account) 2. Store of Value (https://en.wikipedia.org/wiki/Store_of_value https://en.wikipedia.org/wiki/Store_of_value) 3. Medium of Exchange (https://en.wikipedia.org/wiki/Medium_of_exchange https://en.wikipedia.org/wiki/Medium_of_exchange) So think about a couple examples of these: Goats would be terrible money. A unit of account that is "goats" would be subject to birth- and death-rates. Sports game tickets would be terrible money - they're significantly more valuable before the game, and after the game, they're far less valuable. Mountains would be terrible money. How could you exchange them, unless you were able to keep track of who owned the mountain? Dollars are actually pretty good at all three. They don't die. They're pretty stable in terms of value. It's pretty easy to give someone Dollars. Bitcoin are... ok... at some of these. It's pretty good as a unit of account - if you can secure your wallet. It's... ok... at being a store of value - there have been some very high-profile sudden value fluctuations that left people holding a bag. It's pretty easy to give someone Bitcoin, but not trivial. It looks like it costs about $1 to make a bitcoin transaction happen, where I can transfer a few dollars for free. I'm not a Bitcoin supporter, but I don't think it's fair to malign the tech for things it actually can do.