I agree also, and ironically, I see cryptocurrence being a vital element of our way out of the environmental problem. The end result is radical, but I believe our only option, which is happening in any case - the end of all capitalism, and probably the beginning of real democracy. I posted a little of that thinkng in my own response to Arnas, but also I have written around 200 articles on the same subject, they can be found be searching for "Bitcoin Kardashev Hinge"