ELI5: Explain Like I'm 5

Map-territory relation

Imagine you have a big toy car and a map of your house. The map shows all the rooms, furniture, and doors in your house. When you look at the map, you can see exactly where everything is, even if you aren't in the house.

Now, let's say you want to drive your toy car from the kitchen to the living room. You look at the map and see that you need to go through a door, turn left, and go down a hallway to get there.

But here's the tricky part: the map is only a picture, it doesn't actually show you what the kitchen or living room look like in real life. It's like a pretend version of your house that helps you understand where things are in relation to each other.

This is kind of like the map-territory relation – the map (or model) is not the same as the actual territory (or real world). The map helps us understand and navigate the territory, but it's not a perfect representation of it.

In the same way, scientific models and theories are like maps that help us understand the world around us. They are useful tools, but they can never be a perfect representation of reality. That's why scientists are always testing and refining their models based on new information and observations.