*From the site-book:*
> The Loop redirects traffic through interlocking spirals. Design principle: each turning must resemble the last closely enough to be reassuring and differ enough to be unprovable. The visitor's confidence should survive exactly as long as their patience. Geometry laid to the tenth decimal place.
*Marginalia:* it was during THIS installation that the stones first settled into a pattern not in the blueprints. A slight thickening of a wall. A widening of a threshold. I called it a triumph.
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**Town restoration note.** You are one level into the only corridor of the rebuilt Gallery that still recurses. It goes three levels; this is disclosed, finite, and it ends by letting you out. The old Loop made the same promise and kept none of it.