It seems to me that perhaps the title of this link is misleading. The author doesn't model anything and shifts the burden of proof onto the reader if any doubt

It seems to me that perhaps the title of this link is misleading. The author doesn't model anything and shifts the burden of proof onto the reader if any doubt is cast on his assumptions. He also invalidates any conclusions regarding BI in the premise which makes the entire model meaningless (a kind of syllogistic fallacy iirc). Really this article should probably be something along the lines of, "Monte Carlo Simulations in Python." This is not a discussion of BI at all.