Eggplant, Using a linear model to fit and forecast a nonlinear system can work well until the system bifurcates and the forecasts crash and burn.
Swedish conservatives are getting more and more political power. The left relies on the Muslim freeloaders to get left seats. When the Swedish kroner crashed and the government pension system crashed as well the middle class government workers such as my engineering friends switched to private pensions for their retirement. But at least the Swedes did not inflate away their citizens savings as our leftist political gang is going to do except for their stashes.