Computational irreducibility comes from the diversity of the group. If the individuals within a group are homogeneous, then the group can be approximated as a single individual. An example of this is achieving distributed consensus with homogeneity, where a network of homogeneous distributed nodes can be approximated to the computability of a Turing machine. On the other hand, living organisms are often composed of diverse individuals, making them irreducible. Emergent phenomena are computationally irreducible. Bitcoin is computationally irreducible because it is a group formed by diverse miners as computationally irreducible individuals. Its vitality and uniqueness stem precisely from this irreducible emergence.