Comment by Marsymars
5 days ago
> every additional unit of housing you build frees up some unit at or below that unit on the stack of housing. The effect percolates all the way down to long-term supportive housing rooms.
This makes intuitive sense to me, but I've really struggled to explain it in a way that makes it click for people.
Just ask: whoever moves into the new place, where did they live before? Does their previous apartment vanish into the ether?
This is an aside to your thing here, but I don't think any of us can do better than the HN commenter on the other housing thread today who said (paraphrasing) that this concern about building market-rate housing is like expressing concern that nobody builds used cars.