It's funny how UBI is one of the few economic policies that require such rigorous study to be considered for implementation. Pretty much every other aspect of our economic system was just implemented because of economic theory building without much empirical justification.
> implemented because of economic theory building without much empirical justification
Not even that sometimes. Like the US attempting to re-ordering the world trade system by imposing massive tariffs. They did this even though both economic theory and empirical evidence (previous historical attempts at doing this), showed it would be disastrous.