It was also intriguing to hear from the Reserve Bank last week in a select committee when my colleague Damien Smith asked if the Government had given them any indication as to future immigration levels to assist with their economic forecasting. Evidently, the Government hadn't, and I think we can safely assume that this is because the Government doesn't know either, and the bankers are left guessing in their models. I suspect there's a fair bit of that going around, particularly as we look at forecasts around productivity, employment, and inflation. 