[gnasr]

>We have all kinds of markets already, ones that are much faster, more liquid and more efficient than any blockchain-backed exchanges.

You are talking probably from a developed country point of view. For those like me who lives in a developing country none of those are accessible for everyone, only for a few percentage of the society. Cryptocurrencies solves a lot of problems for people in oppressed countries or with a lot of terrible regulations and high inflation rates.