Dear David,
In my opinion, the survivability of a currency is correlated to its
"mass" and its "momentum".
The "mass" measures the number of governments and institutions that
hold the currency in their porfolios, or the size of the assets they
hold that are denominated in the currency.
The "momentum" measures the length of time (in decades or centuries)
that it's been a viable, valuable currency.
By those measures, the US dollar is by far the most survivable
currency. Given its current mass and momentum, I believe that it
would be practically impossible to hyperinflate it.
Other currencies that score high on this measure are the British pound
sterling and the Japanese yen.
The euro is too young to have enough mass and momentum to be entirely
survivable, but it's close.
The bitcoin has almost no mass and no momentum. I don't expect it to
survive at all.
In my opinion, the parabolic bubble described in the article
that you've referenced is a disaster for the bitcoin. It
may mean that the bitcoin won't survive much longer.