There are practical implications to the alternative, where you hold absolute dominion over all the land under your house down to the magma. - If you own all th

There are practical implications to the alternative, where you hold absolute dominion over all the land under your house down to the magma. - If you own all the water resources under your house, your neighbors can't operate a well -- it drains your water - If you own all the minerals under your land, mining operations are functionally impossible. Mapping each lump of coal back to the parcel it's two miles under isn't practical -= not to mention needing to tunnel through someone's "land" (and you may hate mining, fine, but understand that coal mining was historically critical, and a lot of the houses on top of the coal mines were part of the economy that they powered. they weren't trying to shut down the industry.) - Infrastructure projects become impossible. You think CA's high-speed rail land battles were fun? What if New York City needed to get permission from every landowner they build an aqueduct under? The water main would never get built.