[nooneelse]

"Wave tax"... not bad. I've been trying to work out an analogy myself, flush-right law. Imagine it, we could set up a paradigm in which the plumber who installs a toilet includes a little gadget that makes sure you don't flush a toilet without buying a flush-right from him by authorizing a little payment. Call the technology a Effluent Rights Management (ERM) system. It would need to be complemented, of course, with some legislation making it illegal to circumvent ERM, etc, etc, wouldn't want flush thieves simply taking the devices off their toilets.

And there it is, an artificial market created through technology and legislation, just like the copyright market. I'm sure plumbers would be eager to point out the virtues of having such a system.