Opinion | All of the Predictions Agree on One Thing: Humanity Peaks Soon
nytimes.com/interactive/2023/09/18/opinion/human-population-global-growth.htmlMost people now live in countries where two or fewer children are born for every two adults.
coaltrace: simulating genealogies using charged particles
bedford.io/projects/coaltrace/This is a simulation of the basic demographic / genealogical process. Individuals are born and individuals die. This causes lineages to branch and to disappear, and causes the population to share a common ancestor at some time in the past. The coalescent provides a mathematical description of these patterns of ancestry.