Yes very true. It is just one among many things that needs to be explained by a theory though. Things like why do stalls happen, why are there deltas on the end

Yes very true. It is just one among many things that needs to be explained by a theory though. Things like why do stalls happen, why are there deltas on the ends of commercial airliners, and so on. Point is it's one of the more complicated everyday phenomena to explain.