On July 30, I give a keynote talk at the 7th International Conference on Computational Social Science (IC2S2 2021) with the title “Population-scale Social Network Analysis”; describing some of the fundamental challenges in the recently started POPNET project, as well as some first early empirical results on the small-world structure of such networks. If you are interested, have a look at the slides of my IC2S2 2021 talk.
Also see the other contributions to the conference by my Leiden CNS group.