

Just one point to add: there is no currency that is universally accepted. You probably cant buy a pizza with Kuwaiti dinar right now either. But that’s definitely a currency. So your part about “everyone agrees” is not really true of any currency. They work only for a subset of humanity who mutually agree it has value. And you can absolutely find people who will buy crypto from you using other currencies, or give you goods and services for it. Those people are rather randomly distributed around the world though instead of being grouped inside one geographic border. That’s the only difference.


It’s a technology that allows you to verifiably possess a definite quantity of “a thing.” That thing is just virtual.
Think of it this way: shares in companies are also virtual things. You can’t build a bridge out of em.
But a stock exchange is there to sell them to you and they will keep track that yes, you do actually own X shares of company Y.
Instead of issuing shares on a stock exchange to raise money, a new company could just sell shares of itself by creating a new crypto. There would be a finite number of “coins” representing ownership shares. The company could control whether more can be created. And it would be verifiable who owns what.
So that verifying and quantity-control are both features of the software itself. You could say it’s good for those things. As I illustrated above, this could be used to virtualize ownership of something, including the buying and selling of shares of it.