I see a major problem with both of those. You covered #2 - yep, those are banks. And you'd be giving them a lot of control over the currency if this became the

I see a major problem with both of those. You covered #2 - yep, those are banks. And you'd be giving them a lot of control over the currency if this became the standard means of transacting. #1 ... if bitcoin is to replace fiat, then it must replace fiat. I can go ahead and walk into a bookstore with a $20, bill and walk out with a book and $10 in change. It's not a replacement for fiat if there's an hour before I can leave the bookstore, and during the same hour can't buy anything else with my remaining $10...