It's advocacy, not experimentation. That applies to most of the more in depth studies too, which tend to spend a lot of time and money concluding if you give a

It's advocacy, not experimentation. That applies to most of the more in depth studies too, which tend to spend a lot of time and money concluding if you give a cohort extra money for a year or two, they're a bit better off as a result but haven't been able to afford to retire, something the study designers knew from the outset. We have another much larger and long running experiment in guaranteeing people livable incomes for the rest of their life called the pension system, which designers of UBI studies would like you to ignore because it only works by restricting when you're allowed to claim it.