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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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