I don’t assume UBI would leave people in luxury or in subsistence. That is wholly dependent upon how it is administered. I’m glad I didn’t make a good case against it, as I wasn’t trying to. It seems like you read the title but not the post. I advocate for testing UBI and would love for it to work. So much so that I am willing to try and address potential weaknesses with it, areas where it might fail, in order that it has a greater chance for success.