Passage Summary: Since science magazines can't be both easy to read and scientifically perfect at the same time, they should just quit trying to reach the general public.

Conclusion: Popular science publications should stop attempting to explain new scientific developments to a broad audience.

Reasoning: These publications face a choice between being popular but inaccurate (using metaphors) or being accurate but unpopular (being rigorous).

Analysis: This is a 'Principle Justify' question, so we need a rule that bridges the gap between a difficult dilemma and the extreme recommendation to quit. The author assumes that if a goal (accurate communication to a wide audience) cannot be achieved without sacrificing one of its essential parts, the attempt itself is not worth pursuing. Look for a principle that states something like: 'If an activity cannot simultaneously satisfy all its primary objectives, it should be abandoned.' We are looking for a rule that turns the 'dilemma' into a 'stop' sign.