Community is the structure of life evolution between individuals and the collective. Just like fields and particles in the physical world. Fields are like communities, particles are like individuals, and forces are like games. The physical force comes from the field, and the field is the result of the superposition of energy waves from particles. Just like the consensus of $BTC is the community of human games. Consensus is similar to a physical field, force is similar to games, and the fundamental source of consensus and games comes from decentralized peer-to-peer (what mathematicians call: symmetry) individual interactions.