Milton Friedman's negative-tax proposal was intended to replace the "War on Poverty" policies, which in turn were enacted out of a genuine fear that the poorest would be unable to support themselves.
Huh? As far as I know, the "War on Poverty" policies weren't motivated by the fear that the poorest will be unable to support themselves (after all, they managed to do so throughout all the preceding times). They were motivated by the optimism and can-do attitude -- the economy was growing very well, the middle class was booming, the progress towards the shining future was inevitable, so the Federal government should help the less fortunate get on the shining-future bus.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.