Did I miss the part where they operate in a city that gets a lot of snow? Dallas and Houston: maybe they get snow once in a great while. Phoenix and San Francis

Did I miss the part where they operate in a city that gets a lot of snow? Dallas and Houston: maybe they get snow once in a great while. Phoenix and San Francisco: never. > But it’s hard to judge the risk of something that’s never happened. That isn't even a Black Swan; it's a known unknown.