For me it is obvious that POW just isn't sustainable. Take for instance the story of the russian who just bought two power plants to power mining centers.
This is just getting ridiculous.
Furthermore this results in centralization because you need lots of cash to enter the market. Cryptos were supposed to bust up the old centralized monopoly financial systems.
Clearly for sustainability and decentralization, not to mention most everything else, DPOS is far superior.
Add in the performance of graphene based systems over all the others.
Yeah, we don't need no stinking POW.
Thanks for the post.
Keep Steeming!