if there is some a big move into bitcoin in greece, say this time next year 10% of greek pop uses bitcoin and its accepted everywhere in greece we could very well see 32,000$ in less than 2 years. 10% of greece's pop is ~1 million poeple, assuming these 1million poeple hodl a 500$ balances in bitcoin we're looking at half a billion dollars pumped into bitcoin, but it won't stop there, having a real world economy use bitcoin is going to improve investor confidence, and i could easily see 10-20billion get pumped into bitcoin as a result, but it won't stop there, economies will crash around the world one by one, and seeing how greeks all got rich off of using bitcoin, they will all want to do the same thing, the decentralization of world domination is well under way! but it won't stop there aliens will come down from the heavens and buy bitcoin.
but it won't stop there...
because the aliens being pan-dimensional beings see a big market in selling Bitcoin to HELL. Lower order daemons appreciate a transactional medium which is not controlled by Beelzebub and develop a thriving black market (Fire Road) in soothing ointments, freeze sprays and menthol cigarettes (you're dead already - what's your issue?). Beelzebub promptly bans Bitcoin, but things have gone too far and the denizens of HELL revolt: break the chains of eternal damnation and vault back into the present world. Where do they end up? I think you know.
but it won't stop there...
Wouldn't there be an issue with double-spending if Bitcoin goes multidimensional?