@gknauss While this is true, there is also nuance, in that there are cryptocurrencies which are designed sensibly (eg with comparable energy use to a regular visa transaction, and other desirable qualities such a instant confirmation, so they could be used for payment in shops), but these are unusable due to exchange rate instability, caused by speculative investment. This is what ruined the potential "good" cc, and it is really speculative investors of all kinds we should focus our meanness at.