A good “BS Meter” requires a solid Math background.
Certainly, but for most people that solid background does not necessarily require calculus. Don’t get me wrong, I would never discourage anyone from taking it. I just think statistics and probability would be a better way to develop that BS meter for most people. Most people don’t really need the to know the nuts and bolts of calculus. Certainly a good math program would also include geometry, algebra, and trigonometry as well.