still one thing I don't understand: if for fiat it's the central bank governor for a country that decides the local daily currency price against the other fiat currencies, who decides the price for crypto? Bitcoin Core software? Exchange platform software's AI?
From my perception bitcoin price is regulates through market total number of supply and demand, because nobody control the regulation of bitcoin like fiat currency as you stated and it's the reason while fiat is called centralized currency to it have governor who is in control of it's regulations and determination of it speculated values whereas bitcoin is decentralized and it regulate itself through market functional structure.