> If you're concerned about energy use and willing to trust a third party to verify the transactions, then why not use VISA? Well, that's my question.. They ar

> If you're concerned about energy use and willing to trust a third party to verify the transactions, then why not use VISA? Well, that's my question.. They are already willing to trust the party that generated the code that they had legal access to their computer for this purpose. I think we would all be better off if they just required proof of monetary donation to some charity or something. All that was accomplished here was shifting of trust on these individuals at some energy expense; it's insane. It's nice theoretical exercise for sure, but I sincerely hope that anyone attempting to build yet another monetary system on waste of energy will seriously reconsider the idea.