The stripping away of extraneous information and visual clutter is particularly impressive in the turn-by-turn navigation.

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In his financial advisory, Kamen emphasizes the need for investors to realize what is important and what is just extraneous information.

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There really are no stray details, no extraneous information.

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Mr. Brichter, whose design aesthetic is inspired by information theorists like Edward Tufte, a proponent of minimizing extraneous information in graphic designs, says he thinks up new features for apps based on how people move objects in the real world.

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