,&,,&,&,,&                                          &&,&,,,,&&
,&,&&,&,&,                                          ,&,&,,,&,&
,&,,&,&,&,                                          &&,&,,&&,&
,&,&&,&,&,                                          ,&,&,&,&,&
,&,,&,&,&,                                          &&,&,&,&,&
,&,&&,&,&,                                     ,    ,&,&,&,&,&
,&,,&,&,&,                                        , &&,&,&,&,&
,&,&&,&,&,                                    , :,  ,&,&,&,&,&
,&,,&,&,&, 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.)                 ,&,&,&,&,&
,&,,&,&,&,                                          &&,&,&,&,&
,&,&&,&,&,                                          ,&,&,&,&,&
,&,,&,&,&,                                          &&,&,&,&,&
,&,&&,&,&,                                          ,&,&,&,&,&
,&,,&,&,&,                                          &&,&,&,&,&