I remember reading that Sweden didn't want retirees to be subject to random market forces for housing. So they subsidized housing and in exchange restricted the

I remember reading that Sweden didn't want retirees to be subject to random market forces for housing. So they subsidized housing and in exchange restricted the profit when sold. So, really, the point is that we could set up systems to do whatever we want. Those who say "it can't be done" are expressing a philosophical position - while falsely claiming that they are just stating facts.