Well, this is encouraging.
I am not pro basic income because I think it won't fix anything in the US without other changes first, such as universal basic healthcare and more affordable housing, and most discussions about basic income start from an assumption that it will be handled at the national level. I think the current focus on basic income actively takes attention away from things like healthcare and housing. We already don't want to fix those things because they are hard problems to solve. Focusing on basic income strikes me as a variation on how so many people fantasize about winning the lottery. It seems like an easy answer. And people would rather imagine that there is an easy answer than wrestle with hard problems.
Like others are saying, I am unconvinced that this experiment really proves anything about basic income. But I think this may be the first time I have heard of a basic income experiment where the money came from elsewhere.
Maybe this approach does not further basic income. Maybe it will only provide new models for charity. Or maybe it provides a different model for basic income, one that puts a floor in globally and potentially starts the process of moving towards a world government, which doesn't have to be in place of national governments. It can be another layer on top of them. So emergent global order makes more sense than a top down approach to creating it.
One of the issues with basic income is the questions surrounding how it impacts immigration. If you give all Americans $1000/mo, that makes citizenship here an even more valuable commodity.
But if basic income starts as a global initiative to begin closing the gap between rich and poor nations, instead of a local initiative to help the poor within rich nations, maybe basic income can start resolving some of the problems currently fueling immigration pressures and bring barriers down to a more manageable level.