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.@@...@@.. gull call. . . ~ @@@......@
.@@@..@@@. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @.@@......
.@.@@.@.@@ ..@@@.....
...@@...@@ 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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