I'm horrendously worried about crypto gaining more marketshare as long as proof of work crypto remains mainstream. It has significantly worse externalities than just about any company I can think of (including defense contractors/vaping companies), and, if it grows larger before we have clean energy, then we virtually guarantee we won't be able to tackle global warming. We are going to bestow a world that will be sig…
Just put a carbon tax on everything that has environmental externalities, it's as simple as that, it doesn't make sense to target a specific industry, especially one that uses stranded/renewable energy.
The simple solve: price the externality.