No model can take in all influences that drive the economy. The more important aspect of it being a pure mathematical model is that there's no fudge factor for how much they like the current government. So it's not like the Doomsday Clock where the number is intentionally adjusted to drive the news cycle.
Rather, the GDP nowcast dropped because of the release of economic data that was historically associated with a drop in GDP. So if the model is wrong in this particular instance, there would have to be some reason why the historical association no longer holds.
Rather, the GDP nowcast dropped because of the release of economic data that was historically associated with a drop in GDP. So if the model is wrong in this particular instance, there would have to be some reason why the historical association no longer holds.