Me: What did you learn at school today, Alice?
Alice: We learned about Antarctica! Penguins live there!
Me: Correct, anything else?
Alice: And Polar Bears!
Me: No. They’re at the North Pole. Anything else?
Alice: It’s very cold
Alice: It’s at the bottom of the world, so if you stand there, you fall off into space!
Me: No, you can’t do that. Why not?
Alice: Because the clouds will catch you!
Me: Nooooo. Why can’t you fall off the world?
Alice: Because… gravity?
Me: Exactly. Because gravity. What is gravity?
Alice: It sticks you to the world. That’s why you float in space. Because there is no gravity there.
Me: OK, good. Y’know, if you look at the Earth, where we are in the UK, we’d be standing on quite a steep slope (indicates a roughly 51-degree angle with my hand)
Alice: [thoughtfully] Ah. That explains why I woke up feeling diagonal this morning.