Even if bitcoin is only ever accepted as a peer to peer currency, never accepted as a form of payment, its STILL a viable payment method that could be adopted to replace the US Dollar. Since its in shambles and we really need a DECENTRALIZED form of money that isn't as easy to tax for our government. The reason foreign nations are outlawing bitcoin exchanging is not because its any less safe than their own currencies, but because they view bitcoin as a THREAT to their currency systems.