Earlier quoted context omitted.
Yeah, it's the modern version of a minor landed gentleman who can pursue his interests. It's how we got science. Sadly, the best argument against UBI is that vast, vast majority of people will not be working full time on F/OSS or quite possible anything else.
If people don't work on anything once they get UBI this isn't really a problem. Currently, there are many many people who already don't do anything. They only do a little as possible to avoid getting fired OR they do periodically get fired from every job they ever hold once their employers realize they're always going to be a drain on productivity. Having these people on UBI would actually allow productivity to rise.…
4) is a very good point. We don't actually know what keeps our civilization running. UBI assumes that people have a natural drive to be productive, but we got to where we are in a context of natural selection, survival instincts and greed. Removing those aspects from society is rightfully scary.