The idea of free cash for all may seem too good to be true, but a growing number of high-profile people — from Democratic presidential hopeful Andrew Yang to tech billionaire Elon Musk — say universal basic income, or UBI, may become a reality.

And the rest of America is becoming more interested, too: Google searches for the term "universal basic income" have multiplied as much as 50 times between 2015 and 2019.