The new Keynes-Hayek video has been reviving academic interest in history of thought.  The issue: Was Keynes an advocate of central planning?  This is well outside my expertise, but I can’t resist quoting the infamous intro to the German edition of The General Theory.  Don’t forget who’s ruling Germany when Keynes wrote these words:

The theory of aggregated production, which is the point of the
following book, nevertheless can be much easier adapted to the
conditions of a totalitarian state [eines totalen Staates] than
the theory of production and distribution of a given production put
forth under conditions of free competition and a large degree of
laissez-faire. This is one of the reasons that justifies the fact that
I call my theory a general theory. Since it is based on fewer
hypotheses than the orthodox theory, it can accommodate itself all the
easier to a wider field of varying conditions. Although I have, after
all, worked it out with a view to the conditions prevailing in the
Anglo-Saxon countries where a large degree of laissez-faire still
prevails, nevertheless it remains applicable to situations in which
state management is more pronounced.

Saying that your theory is “much easier adapted to the conditions of a totalitarian state” is hardly the same thing as advocating a totalitarian state, or even central planning.  But would a staunch opponent of central planning have written this passage?  I think not.