I've also lived in rent controlled cities (like SF), and my experience runs counter to yours. Your experience is an anecdote, not data. I get the impression yo

I've also lived in rent controlled cities (like SF), and my experience runs counter to yours. Your experience is an anecdote, not data. I get the impression you didn't actually read the article. It points out very clearly that when apartments go vacant in Berlin, they're being sold, not re-rented. If that's what happens when a renter leaves, then there's no stock for new renters to move into. And just throwing in public housing as though it's a magical solution is wildly unrealistic, especially when you're dealing with large numbers of people. I'm sure you live somewhere nice, but it's not reflective of the world.