👉 In probability theory, a coalescent is a stochastic process that models the evolution of a population over time. It was introduced by T. Aumann in 1968 and independently by P. Lévy in 1972. The coalescent model describes how a population evolves from an initial state to another state, where each individual in the population has a probability of being conserved (or "coalesced") with respect to its own state. This means that
