I wish I could track down an image I once saw. It was of an old (I think, Arab) map of the Mediterranean. The African coast was at the top of the page. That I blinked at the inversion was a vivid reminder that maps illustrate political/cultural power.
One day Australia will be at the top of every map of the world. Why? Because alien contact will happen first in our Outback.
Remember. It's improbability Wednesday. Arguably Down Under being On Top is more improbable than aliens :)