I think some reasons Zillow lost were that their pricing and risk processes were terribly underdeveloped in order to scale fast, their models were obviously ina

I think some reasons Zillow lost were that their pricing and risk processes were terribly underdeveloped in order to scale fast, their models were obviously inaccurate, and they didn't understand the difference between an acquisition cohort and resale cohort, and specifically how much the tail sales of an acquisition cohort determines profitability.