Note: I don't live in the USA.
I quickly scanned the article, without trying I found faults with it.
Cash is a 100% anonymous and untraceable payments technology.
Except it isn't, serial IDs on money gets recorded and it's contact with banks is recorded for fraud and deprecation purposes. If it was 100% anonymous and untraceable, that wouldn't happen.
Though hard to imagine, cash operates with no consumer protection at all. If your ‘bills’ are stolen or lost, they are gone forever.
Except I have insurance if my physical money gets stolen or lost. So, I do have consumer protection?
Moreover, there appears to be no authentication mechanism associated with cash payments or transfers, let alone one that matches modern security standards.
Like the RFID chips in my notes?