Quadratic funding is like a game where people give money to a project they like, and the more people who like it the more money it gets. Imagine you have a toy that you really like, and your friends also like it. If your toy only gets money when one person gives it, it might only get a little bit of money. But, if three people give money, it gets more money. And if ten people give money, it gets even more money!
Quadratic funding is a way to make sure that projects that lots of people like get the most money. Instead of just counting how much money people give, quadratic funding also counts how many people give. It's like counting how many friends you have who like your toy. If more friends like your toy, it gets more money.
This is important because it helps smaller projects get more money if lots of people like them, even if they don't have big sponsors or famous people supporting them. It also helps make sure that big projects don't get all the money, just because they already have a lot of money and famous people backing them up.
Overall, quadratic funding is a fair way to decide which projects to give money to, based on how many people like them. It's like saying "more friends means more money for your favorite toy/project!"