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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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