Thank you for your interviews in general, and for this one in particular.  I would only observe that if smart automation is about to arrive as a tsunami (i.e., within the next 3-15 years), and if the recent Oxford Martin School's projection of 47% unemployment (throughout the developed world) is accurate, and if Elon Musk's belief that UBI will eventually become necessary, then it would seem that some sort of middle-class UBI is not only appropriate, but will eventually become necessary and even inevitable (i.e., capitalism loves automation and the higher productivity that it generates).  Also, if I may, with reference to your closing quotation from Adam Smith and the importance of regarding the other person's own self-advantages: it is precisely that recognition of the other person's advantages and wants, and which occurs via our own rational contextual awareness, that gives credence to Spinoza's position that "Persons under the guidance of reason desire nothing for themselves which they do not also desire for the rest of mankind."  This observation by Spinoza is what I term as Spinozistic Altruism, which is arguably a more solid foundation for, or perhaps more accurately a goal of, justice or egalitarian economics than the Rawlsian position referenced early in this interview by Prof. Krugman.