Those skyscrapers teem with occupants, each with a bladder, each one a source of saline. The spare water and power we use for growing cucumbers in the hydroponi

Those skyscrapers teem with occupants, each with a bladder, each one a source of saline. The spare water and power we use for growing cucumbers in the hydroponic gardens. The waste brine we use for picking those gherkins, which makes the ideal beer-time snack for those occupants as they re-fill their bladders...