I do not know what you are referring to, but I point out that fiat means "by decree". So US fiat only exists through legislation. When is legislation not ad hoc?
Well in absolute everything is ad hoc but think about it this way:
You are pretty much guaranteed that, modulo some events, any US president from any party will honor their predecessors' decisions, pacts, treaties, etc. And you can be assured that the whole nation will follow them, because of of the Rule of Law!
What you've just witnessed in Ethereum is a bunch of rich, moderately intelligent, technocratic and very technologically literate (but not necessarily well educated ("who would want a government when you have code bah!")) visionaries and mostly speculators crying to get their money back by abandoning the very characteristic (immutability) that distinguished them from traditional systems of governance! They had a modus operandi that "Code is Law", and they've now turned against it. "Code is Law unless X". Why have that when you can just have plain and simple "Law"?
You are pretty much guaranteed that, modulo some events, any US president from any party will honor their predecessors' decisions, pacts, treaties, etc. And you can be assured that the whole nation will follow them, because of of the Rule of Law!
What you've just witnessed in Ethereum is a bunch of rich, moderately intelligent, technocratic and very technologically literate (but not necessarily well educated ("who would want a government when you have code bah!")) visionaries and mostly speculators crying to get their money back by abandoning the very characteristic (immutability) that distinguished them from traditional systems of governance! They had a modus operandi that "Code is Law", and they've now turned against it. "Code is Law unless X". Why have that when you can just have plain and simple "Law"?