When Austin's metropolitan area has added another 1 million+ people?

[1]

That's a 40% increase.  A 40% increase in water use if individual rates of use remain constant.

They can't, of course.  Under our water rationing system, the City will have to resort to ever more draconian measures.  The more draconian the rationing rules, the greater the dead-weight losses:

1. The harsher the rules, the harder they will be to enforce.  This means the City will have...