A line is so much more than just the distance between two dots. It is the fundamental building-block that every artist employs – even if, like Jackson Pollock, they are simply dribbling paint onto a horizontal canvas. It is a signifier of innate talent: the critics speak of "bold" lines and "subtle" lines. One would be hard-pressed to think of any work of art that did not involve lines – even Malevich's notorious 1915 "Black Square" wouldn't have worked without an outline to define it.
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