> - Is the long term alternatives to PoW actually viable, given the huge power consumption of cryptocurrency currently? PoS and derived schemes like DPoS have

> - Is the long term alternatives to PoW actually viable, given the huge power consumption of cryptocurrency currently? PoS and derived schemes like DPoS have been sound on paper. Their drawbacks have largely been accepted by the community as a good tradeoff for most usage models. However, it can take years of "production" usage to get a good feeling about the long term macro economics, so I wouldn't expect a straight answer to this. The good news is that there will be plenty of big tier networks like ETH2 and EOS experimenting with different variants.