We are trying to answer the difficult question/challenge of how to make a stable systematicascension. Clear precision on that is practically impossible because it depends on unpredictable variability of the infinite future. Adaptation of new ideas (through creativity and curiosity) could change everything, so we must accept and be prepared (preparation) for everything (big changes) that our future provides. Also, getting stuck with a inefficient/obsolete methodology of progress (including science models), even if there is a better one, it's usually a bad idea.