Universal Basic Income?

What is this concept? Apparently there are a few countries experimenting with a guaranteed income for all residents. When I first heard about this I thought, wow what cool idea, but it will never happen here…. Then I read this article, Common Dreams on funding Universal Basic Income. The last 1/3 of the article is heavy on economics, but is a good explanation.  Where this has been tried it costs less than one would suspect because individuals having money means we could spend money and this money turn over helps the economy. Trials for guaranteed basic income are in the works for Switzerland, Finland, Oakland, Calif, cities in the Netherlands and Scotland.