Yes! A fellow scholar, finally someone to share some thoughts with on a level befitting an intellectual of my ilk.
Speaking of concrete, I never mix more than 33% agrigate in any situation, this is simply the best approach. Analysis of the results show that this is the best technique even if Russians are mixing it for you. The nature of chicory makes for a pretty good coffee substitute I have read.
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So you too read Soviet Middlegame Technique! Romanovsky's analysis of that game was great and really illustrated the creative nature of Chigorin's play and how taking a concrete, situational approach is the best policy.