[AnthonyMouse]

> So it has to be world-wide immediately?

It has to be at the scale you want to know if it works in order to see if it works at that scale. If you want to know if it works at the state level, you try it at the state level.

> For a 30-50% increase in taxes? I'm not so sure.

You're forgetting about the counterbalance. If you make somewhat more than average then you pay $16,000 in taxes and receive a $12,000 UBI. On net you're paying $4000, not $16,000. And you don't have to pay taxes to fund welfare anymore, so you were already paying most or all of the $4000 to begin with, and still would be in the place without the UBI.

> It's not like we haven't tried that before

There was a country that tried a national UBI before? Which one?