It is now more or less universally accepted that there is something fundamentally wrong with our housing economy. Not just the centralised industrial production models we use to produce housing: our dependence on a few large development companies to buy the land, beat their way through local community resistance, and build rows of poor quality, unsustainable mass-housing that fewer and fewer of us can afford. The Big Short is not about those industrial housing models. It’s about the economy behind them.