Here's a serious question. I'm like, 50/50 with whether or not I believe BI could work or not, but I really believe it can NOT work without being universal in

Here's a serious question. I'm like, 50/50 with whether or not I believe BI could work or not, but I really believe it can NOT work without being universal in nature. By doing it in a small geographic area only, aren't you're already skewing your results? These people have now an additional incentive not to leave the area, when otherwise there may have better opportunities for upward social mobility. Now you've got a closed system, so how do you handle the general move in and move outs in the area? Are new residents not welcome to it? If not now you've got a big income discrepancy. If they are welcome to it, how do you prevent a flood of new residents? It seems like it's doomed to fail with a small sample size, for any number of reasons. Be very careful here, as this sample is a slice of real human beings, who could be impacted in real ways throughout their lives.