I think it's a good article, and reading some of the past posts in this blog I see the author is a fan of Judea Pearl's causal do-calculus, as am I, so that was also a good read. The article missed an interesting new area of research in graph theory taking advantage of the dualism between graphs and matrices called The GraphBLAS

https://graphblas.github.io/

And the of course the plug for my Python wrapper:

https://graphegon.github.io/pygraphblas/pygraphblas/index.ht...