As you said yourself there ARE some types of mathematics employed by, paraphrasing here, SMART people that do employ 0. So you eat it. Additionally, I enjoyed watching you spend about an hour searching Wikipedia for "Division," "zero," and "irrational numbers." I'm only sorry I couldn't keep you going for longer. However, I just looked up Highlander and the word "sucks" was in the first sentence of the entry. You fail!