Katie: Can we have more light?
Me: Sure, you know how to turn on the light.
Katie goes over to the light switch and flicks it.
Katie: It’s just the right height for me. For a tall person it wouldn’t be comfortable.
I walk over to the switch and show Katie that I can easily turn on the light as well.
Katie: What about daddy?
Me: Daddy isn’t much taller. It’s comfortable for him as well.
Katie: And grandpa?
Me: And grandpa too. It only wouldn’t be comfortable for a real giant.
Katie: Someone as tall as eight Katies?
Me: Do you think someone that tall would fit into this room?
Katie: Of course not!
Me: How many Katies (tall) do you think would fit?
Katie: Um, two.
Me: So three wouldn’t fit already?
Katie: Maybe if the third Katie was a Zoe!
We didn’t actually measure it, but I think that Katie was not too far off from the truth.