You wouldn't be saying that if you had read the paper beyond the quote I posted here.
My quote is about the systemic effects of mass unemployment on the current capitalist system. We had one such event in the past, the Great Depression. Smart tools (that use AI, software, robots, and automation in some combination) might cause mass unemployment in the future. No matter the cause, unemployment causes systemic reductions in income across the whole economy. Government revenue depends on individual and corporate income taxes, employment taxes, property taxes, sales taxes, etc. With mass unemployment, those revenues will dry up. So government won't have the funds to pay a UBI from.
* They could create the money out of thin air, but that would cause continual inflation.
* They could try to tax the wealthy and corporations more (like that would happen), but that would just encourage them to move to tax havens more than they already do.
My answer is to *use* the smart tools to provide the basics (food, shelter, utilities) to people directly, without routing through government and taxes. This is scalable, because smart tools, with the help of people, can make more smart tools, until there are enough for everyone. You don't need an income to supply the basics if they are already covered by tools and machines you own directly, or own shares of the output from for the larger items.