I think the biggest item missing when discussing BI is the huge change in behavior you have among those making near to the proposed BI payment. I suspect the marginal value of selling one's labor would increase significantly against the opportunity cost of increased subsidized labor. That is maybe you are willing to work 40 hours/week minimum wage at a shit job compared to the alternative of unemployment. But if the alternative is just BI that that is better than the shit job. But these people still have the time to work and a willingness to earn more - but the bargaining position is different. So I suspect you would see raises rise for lower-end full-time positions, causing fewer of them to exist and spurring more automation while at the same time see lots more low marginal value jobs that have wage values below the new equilibrium point - such as more temp/part time positions where people can quickly enter/exit the job market when they need some additional cash - which in turn further raises the prices of semi-skilled labor since it will be more sparse. This would even further incentivise subgroups to enter low-effort training to capture these wages.