May 2, 2023 Oliver Whang
One day recently, on a table in Jean Oh’s lab in the Squirrel Hill neighborhood of Pittsburgh, a robot arm was busy at a canvas. Slowly, as if the air were viscous, it dipped a brush into a pool of light gray paint on a palette, swung around and stroked the canvas, leaving an inch-long mark amid a cluster of other brushstrokes. Then it pulled back and paused, as if to assess its work.
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