Earlier quoted context omitted.
The math has never been the problem; it's always been taxing the wealthy that causes the conversation to die. The problem with taxing the wealthy, is that they generally have an outsized share of the political power. I think that a better solution, from a political and psychological standpoint, would involve a voluntary system. If just rent could be covered, this would be the equivalent of $12k per year in many parts…
I mean, maybe we could just tax the 5 wealthiest men in the U.S. who own about half of the world's wealth?
Even if you did manage to tax all the wealth without destroying it, it'd only provide 10 or 20 years of basic income. Which is a lot, but it is hardly enough to make or break a BI as long term policy.