Effective theory

Effective theory is a way of looking at theories and ideas from a simpler perspective. It means that instead of thinking about complicated ideas, like quantum mechanics, we can think about them in a simpler way. We do this by breaking down the complex ideas into smaller, easier-to-understand pieces. We look for patterns and connections between the pieces and use those patterns and connections to explain the bigger ideas, without getting too lost in the details. This way, we can better understand the bigger picture and make predictions about what might happen in the future.