I like the analogy, upside down!
I have a theory about that you know. Nothing to do with this, but I'm sure you're interested.
I think the world is upside down! My reasoning is this.
In the Northern hemisphere, particularly the latitude where we are in the UK, we can only see a small portion of the Milky Way in the night sky. Southern latitudes can see it all.
Now, it matters not, but the whole of astronomy, geography, longitude and latitude are based on the Greenwich Meridian here in the UK when we were, (once), leaders in the field and a world empire. But the whole of the solar system is tilted from the galactic equator and it is the South pole of the Sun that points towards the Milky Way.
It makes sense to me for astronomy in particular, to "switch us over", not physically of course, we would need a lever as long as the universe is wide to do that of course, (according to Aristotle). But if our perception of the sun, the solar system and consequently the Earth, was North = South and South = North, and if we rotated our views of the Earth and the night sky upside down, so everything we saw was from the upside down point of view, we would get a more accurate picture of where we are in the galaxy.
For example, any animations we see show our solar system to the right of, (and sometimes slightly above) the Galactic Center and Galactic Plane. We should be to the left of and slightly below the Galactic Center and Galactic Plane; images below;
I have further, (clearly thought out and scientifically accurate I'm sure), reasoning for this.
Our world is top heavy! All that solid mass up north and liquid mass down south. If we were floating in some liquid, then just like a top-heavy boat we would turn turtle and go belly up!
It just makes sense to view everything the other way round.
Thank you for reading. The guys in white coats are putting me back in the straight-jacket now.