'I' can be likened to a nest of ants, which is an abstract concept and a distributed collective organization. We cannot describe 'I' clearly, just like we cannot describe a nest of ants clearly. But we can describe my person clearly, one of the ants in a nest. Like my hands, my feet, my nose, a worker ant or a female ant in a nest of ants. And this is a complex abstraction in biology. BTC is a non biological ant colony. We don't know where the 'I' (referred to as consensus by Satoshi Nakamoto) of BTC is, but it must be an abstract existence that we cannot capture. But we can clearly and realistically find any specific one of the ants that currently make up BTC. The abstract collective concept and specific individual mapping of complex adaptive systems under this time rule are truly magical. Nash's non cooperative game theory and Turing's ordinal logic system theory are both theories that describe this magical mapping. This magical theory of duality is like: The expansion of the Galois group domain can be bijective as group automorphisms. Transform the expansion of infinity into a convergence from infinity to zero. Seize the infinite power of scientific wonders. Everything in the world is in a circle, and infinity and infinitesimal are similar to the infinite approximation of a circular ring, which also reveals that we cannot grasp the abstraction of real transcendental numbers, such as pi. Pi, also known as "a nest of ants". The dual high taste aesthetics are not only limited to Galois' infinite domain expansion and infinitesimal group automorphism. Coincidentally, Wiles proved in the process of proving Fermat's Last Theorem that the Taniyama Shimura conjecture is dual to each other, and that modular operations and elliptic curves are dual to each other. Satoshi Nakamoto's Bitcoin is also a peer-to-peer technical framework that is mutually dual, and Turing's ordinal logic system is an open dual Nash non cooperative game. Perhaps the ultimate truth of the world can be paired with circles (ellipses). Because circles can map all matter. All things are natural numbers, which is no longer precise. Perhaps all things are real numbers, and circles can map all real numbers. This is the ultimate duality of nature.