Quantum reality can only be confirmed, but not verified. $BTC's longest chain is quantum—it can be confirmed but not verified. The human mind is quantum. The quantum properties of $BTC come from the human mind. The price game of the human mind around $BTC has led to the emergence of the quantum property of the longest chain. The technical structure of $BTC (Turing ordinal logical system dual Nash non-cooperative game) lies in connecting human minds through games, thereby emerging a decentralized and secure longest chain.