This question was triggered by hearing the very entertaining podcast below. In it they explore why people root for the underdog 80% of the time and the others root for the expected winner.
http://www.radiolab.org/2011/aug/23/winning-side/Can Bitcoin be seen as an underdog? Or do you view it as the long-term winner over established national currencies (i.e. it'll just be a matter of time)? Your perspective has an impact on how you might support Bitcoin so think about it!
