Thus, some kinds of BS can be very important and somethings given great importance can be complete BS.

Within this statement is the key that unlocks one leg of the stool that upholds the Grand Unified Theory of BS: that BS itself is divided, and, more importantly, it can be expressed mathematically.

Let us call Very Important BS something, perhaps BS' (pronounced "Bee Ess Prime"). Regularily Important BS can be called BS, and the speeches of politicians can be called BS| (pronounced "flushable crap"). It is then immediately obvious that.