"Performance" in the sense of the "performance" of a stock is pretty well established terminology, but yeah, that just highlights how these currencies are highl

"Performance" in the sense of the "performance" of a stock is pretty well established terminology, but yeah, that just highlights how these currencies are highly speculative assets. It's definitely possible to exchange cryptocurrencies for goods and services. I paid for a plane ticket with BTC just the other day (AirBaltic) and it was more convenient than using my debit card (because my bank requires a particular proprietary 2FA scheme that I don't always carry). There are many people who charge for their programming services in cryptocurrency... there are huge dark markets... several cafés accept cryptocurrency (Paralelni Polis in Prague just switched to Litecoin from Bitcoin)... etc etc. The top cryptocurrencies are valuable, liquid, and offer many benefits over other payment methods, so it's obvious that you can use them for exchange.