The basic idea of the economy is people can earn the right to energy, and then direct it to a goal of their choosing. The government making a value judgement about what type of commercial activity is worthwhile is extremely risky. Countries with innovative financial and credit systems have historically steamrolled those that don't have such innovations. We still don't understand the nature of crypto.
One role of government is to curtail negative externalities. If it's possible for a few people to profit by causing general harm through accelerating climate change, that would be well within the government's mandate to regulate against this. It's possible that cryptocurrency will be the future of finance. It's also entirely possible that crypto - which is incredibly expensive energy-wise per transaction - is actuall…
I agree, but couldn’t this be said for a lot of activities? It might be a competitive advantage to ban the production of reality tv shows or video games or cars or steel. Is it really a good idea (or even morally defensible) for the state to make these kind of macro decisions (based on what might be best for the economy)?