Okay kiddo, do you know how you learn things at school? You go to class, listen to the teacher, and remember what they taught you, right? Well, buildings can do something similar too! They can learn and change based on how people use them.
Buildings have lots of different parts, like walls, windows, and doors. Sometimes these parts might not work the best way they could. For example, imagine a hallway that's always dark because there aren't enough lights. People might trip or have trouble finding their way. But if the building "learned" what was happening, it could change to make things better!
So, how do buildings "learn"? Well, people who design buildings can put in sensors or other technology that can gather information about how the building is being used. These things might measure things like how much light is coming in, how warm it is, or how many people are walking around. Then, special computer programs can analyze all that information and figure out what needs to change to make the building work better.
It's kind of like how you learn math in school. You might take a test and your teacher looks at your answers to figure out what you understand and what you need to work on. Then, they teach you more so you can do better next time. Buildings can do something similar, by changing the way they work based on how people are using them.
It's pretty cool, huh? Buildings can be really smart and make changes that help us all out!