Interesting angle -- but it's really not a defense of POW so much an argument for networks like Saito (https://saito.io https://saito.io) that replace mining wi

Interesting angle -- but it's really not a defense of POW so much an argument for networks like Saito (https://saito.io https://saito.io) that replace mining with routing work and get cost-of-attack from the electricity spent running the servers / routing infrastructure.