> which has a cost of about ½ cent per kilowatt hour Energy is not even the half of the answer. You have to extract an electricity from your carbs. Also you ha

> which has a cost of about ½ cent per kilowatt hour Energy is not even the half of the answer. You have to extract an electricity from your carbs. Also you have to own some mining powers and to be sure that governments will not confiscate your property. And please not forget that "monetization" part of mining strategy becomes less and less effective if your goal is just to get bitcoins instead of to support community. Last but not least - among all the possible "change in coding"-s they are talking only about PoS, there are no more of intellectual load in the article.