The numbers are entirely workable. You just worked them, in fact. A boost of taxation to Denmark levels and dedicating the revenues to a basic income would do i

The numbers are entirely workable. You just worked them, in fact. A boost of taxation to Denmark levels and dedicating the revenues to a basic income would do it. It's not a math or accounting problem, it's an economic and political one. No UBI advocate thinks it could be done politically this very moment. But drop labor force participation to below 50 percent, and we've got a very different political and economic situation. Absolutely no one else has even an inkling of how to deal with that hypothetical situation--the best conventional policy thinkers have is "it's impossible for that to happen, so we don't need to worry about it." And if it doesn't, well, I'm more than happy to concede that a UBI isn't politically possible, or even necessary TBH. If it does, though, a UBI is the best mitigating strategy we have right now, and the impossible can rapidly become the necessary.