There surely are positive externalities, but the very useful things we burn fossil fuels for are reflected in the price - cheap or no. Those primary reasons for burning fuel will have all sorts of externalities, positive and negative. And one would expect similar externalities from the work done by renewable energy.
If your position is simply that we are fortunate our planet was/is abundant in fossil fuels, I don't disagree (ideally there wouldn't have been enough to completely wreck the climate we depend on, but...). But the issue is whether we should trust the market in respect to cryptocurrency mining specifically. The history of human civilisation seems a bit beyond the scope.
If your position is simply that we are fortunate our planet was/is abundant in fossil fuels, I don't disagree (ideally there wouldn't have been enough to completely wreck the climate we depend on, but...). But the issue is whether we should trust the market in respect to cryptocurrency mining specifically. The history of human civilisation seems a bit beyond the scope.