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##...#.##. GULL CALL.                    .      . , #.......#.
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#.##...#.#                                          ..#.......
..###....# THE SEAGULL  IS  A METAPHYSICS  TRICK; A #..#......
..#.##...# WORLD-BUILDER'S SHORTCUT,  TO  DEFINE  A .#..#.....
....###... SECTION OF REALITY  AND  IMPLY ITS SIZE: ..#..#....
....#.##.. PLACE A FLOCK  OF BIRDS AT THE  EDGE AND #..#..#...
......###. MAKE  THEIR  CALLS  TESSELATE  OVER  THE ##..#..#..
......#.## ENTIRE VOLUME                            ###..#..#.
........##                                          #.##..#..#
#.......#. A  SEAGULL CAN BE DEFINED  BY  AS LITTLE ..###..#..
.#........ AS  FIVE  VERTICES;  SIX  TRIANGLES.  (I ..#.##..#.
..#....... WOULD  RECOMMEND  HANDLING  IN SWARMS OF ....###..#
#..#...... AT LEAST A DOZEN BIRDS.)                 ....#.##..
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