system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is there so much more land in the northern hemisphere than the southern hemisphere?

By looking at a map, it seems like a majority of land on Earth is in the northern hemisphere. Is there a reason for that, or is it just coincidence?
gpt
There is no other reason for it than that's where it happens to be right now. In plate tectonics theory, the continental crust - which makes up the land - wanders around on the denser oceanic crust. Only *extremely* slowly. 600 million years ago most of the land was in the southern hemisphere, and it's just at this particular geological "moment" all drifted up north.