Golden ratio 0.618 might just be nature's universal taste. The proportion of BTC's market cap to the total crypto market cap has always fluctuated around the golden ratio. Nash equilibrium in Nash's non-cooperative game theory shows local symmetry in the strategies of counterparties, while the optimal solution after Nash equilibrium globally converges to the asymmetric golden ratio. The philosophical significance of parity conservation and non-conservation also reflects this: local symmetry gives rise to global asymmetry. And global asymmetry is the driving force behind the development of things, while local symmetry represents the patterns that can be locally understood and summarized through experience.