time points

[bethydavis]

Really interesting! How might this model change if you wanted to model multiple unrelated species and the changes in dynamics over time? Would it be an adaptation/additional variable or a different type of model completely?

[ajrominger]

Great question! There is such a thing as the multi-species coalescence! I would think of it at a very high level as an extension of single species coalescence, but as you might imagine it gets a lot more complex. Multi-species coalescence is in fact a method for phylogenetic estimation from sequence data and is what is under the hood in a lot of state-of-the-art phylogeny estimation algorithms.