What do 'I don't know' and 'cool' have in common? On the surface, it may appear that they are completely different words with different meanings. But upon closer inspection, a subtle similarity reveals itself. Both words have the power to say a lot without actually saying anything at all. The phrase 'I don't know' is a great way to admit that you have no way to answer a question. It can be used in any situation - whether it's an academic exercise or an everyday conversation. Similarly, the word 'cool' is often used as a form of approval without a lot of explanation or analysis. It can be used to censor something that is too long-winded or to express appreciation of a certain style or trend. Thus, the words 'I don't know' and 'cool' share a common way of communicating without using many words. They both have the power to say a lot
without actually saying anything.