"The best tunes are songs with a face. You recognize them. You know them. It’s like a person. They have a face that’s outstanding. Other songs don’t have a face. You just hear them, that’s all. The really good ones are few and far between."

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. . . it is interesting to note that the original problem that started my research is still outstanding - namely the problem of planning or scheduling dynamically over time, particularly planning dynamically under uncertainty. If such a problem could be successfully solved it could eventually through better planning contribute to the well-being and stability of the world.

— George Dantzig