The last time I checked, the world was completely divided "only into countries".

Also, not land or gold or bitcoin are the assets. The *ability to own them* is what makes them valuable.

Bitcoin comes with real ownership pre-installed but land... Owning land depends on so many things we common peasants can't control.

If you're Bill Gates, feel free to invest in land without hesitation, but otherwise I'd recommend thinking long and hard about it.