At least in one key respect  - they make an almost perfect Gestapo-style surveillance possible. So crypto-anarchism now requires an international health-service with privacy for the poor and transparency for the powerful.  Covid-19 may not be the last, since it was not the first, and CCP fascist scumbags still dominate the Chinese empire.  https://cointelegraph.com/news/how-one-company-is-leveraging-blockchain-tech... This could be a step in this direction - caveat lecter