The obstruction to CBDCs wasn't technology. It was people born before 1945 that were against a cashless society. Bitcoin wasn't what lead to the cashless society, it was credit cards. Bitcoin and lightning embarrased the financial sector into leaving behind its highly profitable and information-rich credit card and debit card system. People from the depression/abolition era valued privacy much more than gen-x'ers. Now they are all gone and the internet natives are so deep into crazytown with their gmail, instagram and gaming society, they can't imagine having or even understand the value of the kind of privacy and freedom nostr and ecash provide.