Nothing can be quite so helpful as a well-placed comment. Nothing can clutter up a module more than frivolous dogmatic comments. Nothing can be quite so damaging as an old crufty comment that propagates lies and misinformation.
Compensating for Failure
Comments are, at best, a necessary evil. If our programming languages were expressive enough, or if you and I had the talent to subtly wield those languages to express our intent, we would not need comments very much—perhaps ...
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