This is what jumped out at me too. I agree with most of his statements but not with “Crypto is not a medium of exchange”. Yes, all the investment and speculation and “financial instrument” stuff is a mug’s game, but it does mean when I want to make a transaction it’s easy for me to buy some Bitcoin and it’s easy for the other party to sell that Bitcoin. I barely trust my bank to transfer money between different accounts inside the bank; when it goes from bank to bank it’s passing through at least two inscrutable “fraud detection” algorithms implemented by bankers, and if it’s going international it’s likely going through at least two more “fraud detection” algorithms implemented by governments.