I support your decision to invest 100% of it in bitcoin, but to say that bitcoin will replace fiat in the future is highly unlikely and most likely impossible. As long as the government still controls this world, they will never let that happen. It will never be possible that they will let a decentralized currency replace fiat money and take over their power. It can be said that fiat is their leading power distribution system, they control all of us through fiat, and if they lose it, their power will be shaken too.