> a lot of energy is going to waste now.
Is it? How much does Bank of America spend in energy to keep up its servers? Backups? disaster-recovery setups? That's a significant energy cost, too.
Is it? How much does Bank of America spend in energy to keep up its servers? Backups? disaster-recovery setups? That's a significant energy cost, too.
Of course any big corporation or administration is going to have a lot of underused ressources and redundancy but it doesn't mean they burn power "for the sake of it" as bitcoin does.
Also, bitcoin is not a bank, it's supposed to be a currency. If big banks were to switch to bitcoin I don't think they would spend less energy doing all you said. So no matter what you think of bitcoin it's fair to say it's not very "green" so far.