One big reason for my support of NIT over UBI is that inequality has grown hugely as of late, and although that isn’t inherently negative, the social immobility that has been brought with it has been incredibly damaging all over the developed world. I also believe that, above around £75000–100000 per year, people are genuinely better off to have their income stagnate (due to happiness and mental health reasons), as some studies have shown. Progressive taxation can do this, but UBI and then extra taxation on top is perhaps more inefficient than simply NIT with more progressive taxation.