“What is money?” sounds like a bit of a silly question. You’d probably hold up some cash or maybe flash your debit card. But I challenge you with this: imagine a 5-year-old asking you this question. How would you answer? If you showed them a $20 bill, they might respond with, “I know that’s a money, *but what is it?*” If you manage to explain that the bill is worth $20, they’re next question is going to be, “how many is your card?” How would you answer that? At some point you’d probably end up trying to distract them with something else while you worked to ignore the dread feeling that you should have those answers, but don’t. Never fear, for we will attempt to explain it in such a way that you’ll have an answer for 5, 15, 50, or 95-year-olds by the time we’re done this 4-part series!