@danirabbit UBI doesn't allow people to sit at home and smoke weed all day, at least for very long. Weed costs money, and the word 'basic' in UBI carries some meaning.
What UBI does do is to provide a safety net. Including to entrepreneurs who never meet the criteria for social welfare. UBI means that you don't risk your family starving if your new venture has a cashflow crisis. You don't need to justify to some social welfare agency why you need cash for your family when a month ago a bank just gave your firm millions of dollars for capital purchases. The UBI just appears in your bank account, like it has every week when you didn't need it.
That UBI will be the best thing to happen to new small business often escapes both the left-wing promoters and right-wing detractors of UBI.
UBI will allow a new wave of entrepreneurship and new businesses. That in turn makes the entire economy richer.