Basic income exists already in several European countries. For example in Germany you get for half a year after loosing a job about 75% of your last salary. After six months it degrades but you will always be supplied with a home, food, cloths and some little money to spend.
In France you get paid for two years after loosing your job. In Denmark I think it is three or four year even. Enough time to start three or four startups.
Would be interesting to look into the data of these countries.