Farmers, who made up the great bulk of the population, used to have months of comparative idleness in the winter. The ancient Greek philosophers extolled the virtues of not having to make a living, since it allowed them to do philosophy. Time to simply think was precious and rare to them.

The idea that UBI has to provide a poverty level income shows a lack of imagination, or simple arithmetic ability. At present, Canada has a per capita GDP of around $50,000 per year. About 70% of that is consumer spending. That means that there is $35,000 per year PER PERSON available for consumer spending. If that grows (real growth, after inflation) at the modest rate of 2% annually, it doubles every 36 years.

UBI won't pay a full share of GDP, but if it pays even a quarter of that, a family of four would receive $35,000 per year. That's not wealth, but not poverty. The $70,000 they could expect 36 years from now is even less poverty, as is the $140,000 they could expect 36 years after that.