No Free Parking for Hybrids

"Henceforth, a fellow with a hybrid car can park free - wherever he wants. We will have to pass over the practical innards of the plan - how will the owners of the parking spaces be compensated, the paperwork, enforcement and so forth - and move to its theoretical troubles. Readers will quickly see that in order to improve the world in this manner, millions of private arrangements must be dis-improved. Someone must make up the lost parking revenue."

Thanks to Michael Dudley