It is important to understand that by numbers to leave numbers, or form to leave form, I am describing a process in which technical information is integrated into what feels like natural intelligence. Sometimes there will literally be numbers. Other times there will be principles, patterns, variations, techniques, ideas. A good literal example of this process, one that does in fact involve numbers, is a beginner’s very first chess lesson. All chess players learn that the pieces have numerical equivalents—bishops and knights are worth three pawns, a rook is five pawns, a queen is nine. Novices
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