It's very strange to call a proposal (negative income tax) made by economists as orthodox and central to 20th century conservative politics as Milton Freedman as _utopian_.

But even beyond the aspirations of a UBI/negative income tax, the real problem with any such proposal will be implementation and policy details which most UBI proponents don't talk about much if at all.

Will UBI be counted as income? How will this interact with other programs such as SNAP, healthcare subsidies, HUD housing subsidies, or any number of state operated programs? Will they be mutually exclusive?

Will existing policies or laws need to be modified in order to accommodate such a proposal?