> My great annoyance with all this blather about UBI and post-scarcity and new economic models is that it relies on taxing and redistributing the ~infinite profits of the largest tech companies on earth.

The arrival of true AGI and human-level robots will likely result in very strong deflation, since robotic factories will flood the market with goods produced for far cheaper than those in factories with human workers.

At that point, you don't need taxation. The government can just print the money for UBI. It would have to print the money anyway, to combat the massive deflation.