A kid breaks a window. the glazier gets paid. the keynesian says great, that's spending, that's growth
nobody asks what the shopkeeper would have bought with that money instead. a suit. a new oven. the window is visible. the suit that never got made is not
the economy didn't grow. it got a window back and lost a suit. you can count the window in gdp. you can't count the suit anywhere. that's the whole trick
