Here's your executive summary. Proof of stake... is much cheaper - less inflation. is more environmentally friendly. with PoS, only people who already ow

Here's your executive summary. Proof of stake... is much cheaper - less inflation. is more environmentally friendly. with PoS, only people who already own ethereum can mine. Rich get richer. has less desirable consensus properties. Many people keep coins on a handful of exchanges - now those will control the network. Nothing-at-stake attack.