We're heading toward a future where more and more is automated and there is less and less room for non-creative work. Let's face it, not everybody can be creative in a way that is lucrative. Do we really want to doom more and more of the population to a subsistence income, while more and more of the gains due to automation go to a shrinking segment of the population? I tend to think that a generous UBI is really the only sensible thing to do.

In case anybody has not read it, Mana, is a short story based on an extrapolation of this kind of rise of automation. I highly recommend it: http://marshallbrain.com/manna1.htm