George Selgin had it right in inflation

Unemployment goes down during periods of stable pricing. He e mailed me once on the topic, and I sort of took the normal view, prices rise during growth.  But he was right, and give him credit. Look at the chart, the green unemployment line most goes down when prices are stable.

Efficient pricing means stable prices meaning the economy is growing adiabatically, no one is jerking at the levers. My excursion in physics renewed my sense of orientation after listening to some economists for too long.