Whether you believe in BTC or ETH boils down to whether you think BTC can survive the end of mining and whether proof of stake is a sensible way for ETH to do things. Otherwise it's all tulips. Thoughts?
Imho, coin should be both. We spend way more power using Netflix and Facebook, so power usage is not an issue. A good coin should use both PoS and PoW to scale properly. Essentially you have a fast (PoS) and slow (PoW) lane on the blockchain. Going all one way is dumb. You need PoS for some use cases and PoW for others.
Power usage is not at all high to maintain blockchain ledger. Itβs high because of mining, and the difficulty of mining will reduce with reduction in competition.
Agreed, think there is room for both in the short to mid term. POS will need some time for the implications to become clear