" ......the integration of matrices is not a simple operation of adding together. It is a process of mutual interference and cross-fertilization, in the course of which both matrices are transformed in various ways and degrees. Hidden axioms, implied in the old codes, suddenly stand revealed and are subsequently dropped; the rules of the game are revised before they enter as sub-rules into the composite game. When Einstein bisociated energy and matter, both acquired a new look in the process. "

― Arthur Koestler , The Act of Creation