> you will eventually run out of water. In the context of the GP comment, isn't that entirely dependent on how deep your holes are? By definition, if you dig

> you will eventually run out of water. In the context of the GP comment, isn't that entirely dependent on how deep your holes are? By definition, if you dig holes "deep enough", then you won't run out of water. And they are providing a concrete example of somewhere that they do dig holes deep enough to not run out of water (though I'm not sure how constrained the population growth is there).