You can go another layer deep too: https://en.wikipedia.org/wiki/Recursive_islands_and_lakes#Is....
It's lake islands all the way down...
It's lake islands all the way down...
I mean, "if" is doing a lot of work there! Earth is not an island because it's not surrounded by water. Poetically, sure, it's a nice metaphor, but it's only a metaphor.
https://www.youtube.com/watch?v=M186s319ob8&list=PLa0TgREKn1...
Similarly, my home is not an island even though the air around it contains water vapor. Nor is my home an island because there are some puddles on the street outside.