> the value diverted to coin purchases ultimately has a cost in goods and services I see what you mean, but that opportunity cost applies to all currencies. Ev

> the value diverted to coin purchases ultimately has a cost in goods and services I see what you mean, but that opportunity cost applies to all currencies. Every dollar we hold in currency (be it fiat, PoW or PoS) could have been invested in productive businesses. People tend hold substantial amounts of currency anyway since it's convenient. If we assume that people are going to hold about $10 trillion in currencies anyway, then it makes sense to ignore that opportunity cost when comparing PoS to PoW. > Proof of Stake totally aligning the incentives of owners of mining capital (which in the case of PoS is the network coins) with the success of the network. I agree -- aligning validators' and stakeholders' incentives has some nice benefits. It means we can have validators vote on parameters like minimum transaction fees, and the outcome of the vote should reflect what's best for stakeholders as a whole. In a PoW system that wouldn't work well -- the miners would likely vote for minimum fees that were higher than required for secure validation.