Recent times have shown two important things to me.

One: People want to create regardless of any reward related to it. The excuse that people need to be rewarded in order to do anything valuable is completely wrong. People, in general, want to do things that other people find valuable and beneficial and bring joy to other people. We are very social, and that desire is nearly universal. If one has no concerns over their continued comfortable existence, then the vast majority of people would dedicate themselves to something they enjoy which is also useful and helpful to others.

Two: People will very happily give rewards to those who create things that they want and enjoy. Even people who themselves have little, will give some to those who have brought them happiness and joy with their work and effort. We see this in all the people donating even when they receive nothing in return for it.

Point two suggests that universal income is theoretically unnecessary, but point two is unreliable. Yes, people will give, but they won't give in a steady, reliable way that can be counted on to meet another's needs regularly. And just as importantly, they don't really give if the quality of the creations are low, which...fair enough, however, this limits the potential creator's ability to practice and get better, since they cannot devote their efforts to the thing they enjoy that would, if they got good at it, be enjoyed by many; instead they are forced to devote their efforts to continued survival and comfortable existence.