That's the same logical fallacy that makes people think that small scale UBI experimental results apply if rolled out to the entire society. There are systemic

That's the same logical fallacy that makes people think that small scale UBI experimental results apply if rolled out to the entire society. There are systemic and emergent effects that are not accounted for, and the only way to actually do the science is to make a copy of society and only do the change for one of the copies. (which is obviously impossible, which is GP's point)