This is a great map, they should show it alongside the typical one when teaching geography. I'll show this to my kids later, see what they think and ask them to find some countries on it.

A similar change of perspective "trick" is knowing that when we look up at the stars, it's not really "up", it can be "down", too. Imagine being suspended head down, feet stuck to the ground looking at the space below, with billions of light years worth of almost nothing out there. A bit terrifying, I suppose, so maybe don't think too much about it :-)

In practical terms, though, 90% of the world's population lives in the northern hemisphere and the northern hemisphere contains ~65% of the earth's land mass, so it's not entirely without merit that we orient the map that way.

"The enemy's gate is down"!