New preprint: Distributions of metric n-point invariants and applications to molecular evolution with Mario Gómez, Facundo Mémoli, Maximilian Neumann and Andreas Ott is now on arXiv. We show how many sampled n-point configurations it takes to approximate the n-point geometry of a space, and use the resulting distributions to study a large data set of SARS-CoV-2 genomes. Code: n-invariants.