I wouldn't say OP recommended banning anything 'arbitrary'. It was very relevant to the discussion to state that the ban should be on proof-of-work currencies.

I wouldn't say OP recommended banning anything 'arbitrary'. It was very relevant to the discussion to state that the ban should be on proof-of-work currencies. Here's my issue. There is such a thing as too-late in environmental matters. Once it's too late, it's a fire that sustains itself. Therefore, acting quickly matters. Addressing the source directly is obviously the superior solution. But I just don't see it happening at a fast enough rate. I see nuclear power in the same way. Yes, it's a little bit of trading one problem for the next, but it's a very necessary stop gap to buy us time.