Cryptocurrency actually does solve that if you kinda ignore the scalability limitations of blockchain. Of course, the minute you add another transaction layer

Cryptocurrency actually does solve that if you kinda ignore the scalability limitations of blockchain. Of course, the minute you add another transaction layer or exchanges or other third parties, then that wipes out most of that advantage and generally the more it facilitates cheap and fast transactions the more power is given to the third party and/or more fee is taken. I’m still a fan of first layer transactions and just making the blockchain much faster using brute force increases in block frequency and block size. Might be able to keep transaction fees low enough to be a useful alternative. But as long as more people are interested in cryptocurrency (and related tech) as a Ponzi get rich quick scheme than as a practical way to facilitate transactions, I don’t see it making a significant dent in the regular financial system.