So you are saying you can’t give a current example of a “defined” (by your definition) exchange rate. But for some reason I am supposed to provide one to you for a virtual currency. Do you see the double standard?
Where did I say that?
You asked for an example and I gave you one. Go to Cuba, exchange your dollars for pesos, and you will get to see a currently defined exchange rate. The definition of "defined exchange rate" doesn't change over time.
But for some reason I am supposed to provide one to you for a virtual currency. Do you see the double standard?
Who is being intentionally obtuse now? Provide an old example of a define exchange rate for Bitcoin if you have one.