I think the caveat in this discussion is that BTC needs something like this if and only IF it can be done securely. Unfortunately, due to the nature of network

I think the caveat in this discussion is that BTC needs something like this if and only IF it can be done securely. Unfortunately, due to the nature of networked systems, the odds of that do seem quite low unless connection security gets a massive upgrade: http://en.wikipedia.org/wiki/Quantum_cryptography http://en.wikipedia.org/wiki/Quantum_cryptography