> zero cost of mass unsolicited mail We use "free" as in zero (immediate) cost, and also use the same word to mean liberty. In source code, I would expect tha

> zero cost of mass unsolicited mail We use "free" as in zero (immediate) cost, and also use the same word to mean liberty. In source code, I would expect that kind of conflation to be a source of subtle and vexing bugs for the application. Can someone smarter than me produce a TED talk that introduces an improvement on this F-word?