ELI5: Explain Like I'm 5

Tame Fréchet space

Okay, kiddo, so imagine we have a big room. In this room, there are people walking around in all directions, some walking fast, some slow. We want to understand how these people move in the room, but we don't want to get too overwhelmed by all the different ways they could move.

That's where a "tame Fréchet space" comes in. It's like putting boundaries around the movement of the people. Instead of focusing on every tiny movement, we group together similar movements and give them a name. So maybe we'll say everyone who walks in a straight line for at least 5 steps is called a "straight mover," and everyone who stops and starts a lot is called a "hesitant mover." We can do this with lots of different types of movement so it's easier to understand.

Now, we can start to ask questions like "how many straight movers are there compared to hesitant movers?" or "how often do hesitant movers change directions?" We can even start to make predictions about how the people in the room will move based on these categories.

So a tame Fréchet space helps us simplify and understand movement in a space by categorizing similar kinds of movement.