Bitcoin has the capability to be a white swan.
But it is currently a black swan! Because so many folks don't know what the hell I'm talk'in about when I mention BitCoin. A friend said to me, "it is a ponzi scheme" (I'm really tired of this response) then said, "your really are a risk-taker." My response was, "no, I'm a early-adopter." Only the future well tell where this thing goes....................
Fair enough. Also, in response to the OP,
Fiat means by decree. No one decreed anything about bitcoin, people just naturally started to use it.