The parent highlighted that carbon tax may do little to nothing to stop proof-of-work cryptocurrencies. The relevant quote is:
> People mine because it is expensive, it isn't the other way around, so the real questions we should be asking in good faith are things like "Why it is profitable in the first place?"
> People mine because it is expensive, it isn't the other way around, so the real questions we should be asking in good faith are things like "Why it is profitable in the first place?"