My whole point is that there are not just these two groups. There is instead a pipeline of your group 1 into 2. Give people homes, cut off that pipeline.

Yeah I buy that to some extent. But according to the studies I've read, the primary driver of homelessness is rising rent, not mental health issues.

See e.g. https://www.statista.com/chart/32585/change-in-median-rent-a...

I see this take a lot but it's a very static take on homelessness.

Yes, homeless people are often in a mental state where they are difficult to take care of. However, that doesn't mean they're homeless because they're mentally unstable. Often, the reason they are unstable is because they are homeless.

Being on the street heavily exacerbates drug and mental health issues. Plenty of homeless people start out normal and then fall into this state. So if you want to reduce the number of crazy people on the street, then people need stability and homes to cut off the pipeline.

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There is useful information in that "there is a possible leak at the top." But there are much cheaper ways to find that out.

However, that is absolutely not what they were testing for. Whatever the test's purpose, this failed to actually test it.