Okay kiddo, a smart market is like a big store where people buy and sell things. But instead of people setting their own prices, there is a computer program that helps decide how much things should cost.
This computer program is called a "smart contract," and it helps make sure that everyone is playing fair and following the rules. Think of it like a referee in a game!
The smart contract uses information from all the people buying and selling things in the store, and it uses that information to figure out what the best price for each item should be. It's kind of like a really smart calculator that helps everyone get the most fair deal possible.
So basically, a smart market is a place where people can buy and sell things fairly, with the help of a computer program that makes things easier and more efficient. Cool, huh?