The book, as it stands, seems to me to be one of the most frightful muddles I have ever read, with scarcely a sound proposition in it beginning with page 45 [Hayek provided historical background up to page 45; after that came his theoretical model], and yet it remains a book of some interest, which is likely to leave its mark on the mind of the reader. It is an extraordinary example of how, starting with a mistake, a remorseless logician can end up in bedlam.
John Maynard Keynes, Royal Economic Society (Great Britain) (1971). “The Collected Writings of John Maynard Keynes: The general theory and after: pt. 1, Preparation”