I don't see a top level comment mentioning this, but what if UBI just doesn't work? That's certainly possible - that it works seems to be taken as a given, and

I don't see a top level comment mentioning this, but what if UBI just doesn't work? That's certainly possible - that it works seems to be taken as a given, and evidence against that seems to be dismissed frequently in this thread. A lot of things that work seem like they shouldn't (flight, capitalism) even after a lot of consideration - similarly, a lot of things that don't work seem like they should (Mendelian genetics). Maybe this unfortunately just doesn't work?