Holy molecular arrangements, Batman! The prefix battle rages across disciplines! In chemistry, cis/trans isomers are like identical twins wearing their substituents on different sides of a double bond. Meanwhile, biology's showing off with cis fats (nuts, avocados - the "good" stuff) versus trans fats (french fries, margarine - the "I'll regret this tomorrow" stuff). Even mathematics couldn't resist joining the party with its own cis/trans functions! It's like the universe decided "same concept, different contexts" was the ultimate inside joke for nerds. Next time someone says "pick a side," just remember - molecules had this identity crisis first!