However I still would like to understand why the answers changed. And more importantly, what remained invariant between the art of programming then and now.
After all at some point the question of what is effective programming practice becomes a psychological question about modes and means of human comprehension. And humans don't change that fast. Criticisms of goto in the late 60's are still on target today. Justifications of it from then are less so - because with experience we have learned how to express with exception mechanisms what then we only knew how to say with goto.
So an understanding now of (human) invariants is knowledge that is likely to age fairly well. Which is hard to find in computing. :-)
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