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The luggage scanner was more free of political baggage in the 80s. Sorting the internals of an object- it's a metaphor for interpretation, understanding, for meaning. But as Heji Shin has shown, the internal can be as useless as the face of God, Kanye. It's all visage, mirage, inkblot. Giving the inkblot a shape at least relieves the viewer full culpability to meaning. The artist shares in the guilt of creation. This is small kindness.
See too: Heji Shin at Reena Spaulings, Heji Shin at MEGA Foundation