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When you are drawing a line within a line within a line, and the line then takes on a life of its own. Eventually the line will be taking YOU for a walk. And then you realize that you are in Penception.

The term became popular with the release of the procedural drawing app "Penception" which makes use of algorithms to interpolate your next line, based on the lines that you have already drawn.
You are in Penception.
by The Poppie June 01, 2013
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