I wouldn't say a direct connection between those things is "obvious". Seems like you could just as easily argue that they are "obviously" indirectly related (ex. COVID-19 would effect social distancing, which would effect population density, which would effect real estate and housing).

But I agreed that the "nodes" I just made up are arbitrary, and that you could make an argument that everything effects everything else in some way. So it's not clear to me what gets to be a node and what constitutes an edge.

A noble effort, I'm all for exploring it, but it seems like pie in the sky.