@nntaleb Nassim, we need a name for this fallacy, maybe you’ve already coined one? It’s a case of a correlation sampled in different places at the same time having the opposite sign from the correlation of the same variables sampled in the same place at different times.https://twitter.com/joe_shipman/status/1268929667492466688 …
Agree with you, both on your point and the need for a name for this fallacy. I might think on that...