The strategies proposed here are sketchy at best. No specifics given, very la-la land. While I agree that proof of work cryptocurrencies are currently weighing on our power-generation abilities and on the environment, one could argue banks are worse.<p>Decentralized currencies do away with reckless money printing and other evils, and for that reason they are the future.<p>I'm sure many were concerned about the environmental impact of the internet, and yet here we are. We'll find a way to make it work.