“Then I look for a general rule for attacking similar problems, that would have led me to approach the given problem in the most efficient way the first time. O

“Then I look for a general rule for attacking similar problems, that would have led me to approach the given problem in the most efficient way the first time. Often, such a rule is of permanent value.“ I like this. It’s a rule for finding useful rules. I wonder if I can get good at this kind of analysis.