The users. If a person wants something, they buy it; if they don't, they don't; and if they didn't, they didn't. A very simple and straightforward model of act

The users. If a person wants something, they buy it; if they don't, they don't; and if they didn't, they didn't. A very simple and straightforward model of action. Yet it has fueled almost every major non-military-funded technological advancement since at least the Industrial Revolution, inclusive. (And if you consider the military a very special customer who has been graciously granted the disposal of the entire nation's profits ... then they are no exception after all.)