Heard a varient at Berkeley from a professor of Applied Math, which you would probably no longer hear. Generic airline, specifically Polish people were asked t

Heard a varient at Berkeley from a professor of Applied Math, which you would probably no longer hear. Generic airline, specifically Polish people were asked to move to the left side of the plane. Because "Poles in the right half plane cause instability." (As for application in economics, economist Steve Keen, for one, explicitly models time delays and dynamics, with results worth learning from, AFAIK.)