[XorNot]

"One day". It will be a gradual process - it has to be - because anyone stupid enough to try and cash-out mass USD in bulk will not get there money's worth back in it.

But more importantly, is there any real sign that that time is soon? Global financial crisis...and the world's investors are literally paying the US to take their money with the current returns on US treasuries.

But it's hardly the USD "collapsing" - it's a gradual process over time, which crucially doesn't effect the buying power of individuals over meaningful timespans to them (decades, not days - unlike BTC).

And, probably more importantly, whatever replacement reserve currency comes to the fore (and what would it be, exactly?), it won't be something like BTC.