3 ms·That's why Bitcoin's great! It's an electronic payment system, and the underlying currency.by Kinnard 11y agoThat's why Bitcoin's great! It's an electronic payment system, and the underlying currency.glibgil 11y ago...and underlying economy (full of exchanges that cannot even OLTP)chc 11y agoI don't see how it's different at all in this respect. If you want to support other payment systems or currencies, you need to implement Bitcoin and another service. Just like the GP was saying about Visa.