This answer written by the Ethereum team addresses why cost spent won't necessarily rise to equal block reward in their PoS formulation. https://github.com/eth

This answer written by the Ethereum team addresses why cost spent won't necessarily rise to equal block reward in their PoS formulation. https://github.com/ethereum/wiki/wiki/Proof-of-Stake-FAQ#doesnt-mc--mr-mean-that-all-consensus-algorithms-with-a-given-security-level-are-equally-efficient-or-in-other-words-equally-wasteful https://github.com/ethereum/wiki/wiki/Proof-of-Stake-FAQ#doe...