Keynes said: we increase the money supply when times are bad. And then we decrease money supply when times are well.
People think we practice Keynesian economics, nowadays. But the man is spinning in his grave.
We practice Neo-Keynesian economics.
It's the practice where you NEVER decrease the money supply. We just increase the money supply when times are bad, and spend more when times are well.
But Keynes was not wrong. He had some clear caveats to his theory. Caveats that are willfully ignored.
And when central bankers tell you they are following Keynesian economics, they are straight up lying. They only follow the parts of his theory they like. Namely, printing money.