Both such solutions would be, in my opinion, challenging to maintain in the event of a coordinated attack by the various corp/gov entities which will probably always have their hands on the levers of the global infrastructure.
you gotta learn to think big. what if gov'ts decide it's in their best interests to adopt Bitcoin?
Remember a guy they used to call Saddam Hussein?
Seriously, thinking that any government is likely to support Bitcoin in any serious or long term way strikes me as a total pipe dream and quite unlikely, and basing any sort of nest-egg on the necessity of such an eventuality is not wise.
I have a lot of hope for (and have a lot of) Bitcoin, but as I've stated before, I view it as a long-shot gamble with the
potential for an enormous payout. Unlike PM's which I don't have to think about, capitalizing on Bitcoin (which again, I do not expect as a given or even very likely) will require a good bit of attention and nimbleness.
A crypto-currency or solution based on the principles is, I feel, a potentially revolutionary world changing (for the better) development, but I am currently of the mindset that Bitcoin itself is not really the one which could do so. At least not in many of the possible scenarios which the future holds and/or not by itself.