The wind of revolutions is not tractable.
Industry, which needs young men who are healthy, tractable, unpretentious and, I would even say, full of illusions, often receives engineers who are tired out, weak in body, and less ready than one could wish to take modest jobs and work so hard that everything seems easy to them. I am convinced that they could begin practical work much earlier and just as well prepared, by leaving things which are not used in practice out of their school education.
Conceptual graphs are system of logic based on the existential graphs of Charles Sanders Peirce and the semantic networks of artificial intelligence. The purpose of the system is to express meaning in a form that is logically precise, humanly readable, and computationally tractable.
It had been different during his first year of graduate school, when he temporarily forsook physics to explore instead the realm of the senses. Applying logic to the late-blooming quandries of maturity, he had parsed the:;elements of encounter, banter, negotiation, and consummation, separating and solving the variables one by one until the problem if not generally solved did appear to have tractable special solutions.david brin