Hunter-gatherer societies stripped the local environment of resources and then moved on to another place. There was nothing environmentally responsible about this sort of economy, in spite of modern efforts to portray prehistoric humans as tree huggers.
The mainstream National Bureau of Economic Research definition of recessions is of little value. Real saving, not consumer demand, is the real driver behind economic growth.
There are certainly good reasons to impeach presidents, but being insufficiently enthusiastic about World War III isn't one of them. This president is really being impeached because he annoyed the military-intelligence establishment.
Keynes and Hazlitt: their lives and loyalties are a study in contrast — and mostly of choices born of internal conviction, in Hazlitt's case, or lack thereof, in Keynes's case.