I see that as the basic problem in this discussion. Proponents of UBI say "everyone will receive $X per month". When people ask "how will this be paid for?", t

I see that as the basic problem in this discussion. Proponents of UBI say "everyone will receive $X per month". When people ask "how will this be paid for?", the answer is always "changes to tax schedules, savings on social programs", but this tells us nothing without details.