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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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