,&,,&,&,,&                                          ,&,&&,,&&,
&&,&&,&,&&                                          &&,,&,&,&,
,&,,&,&,,&                                          ,&,&&,&,&,
&&,&&,&,&&                                          ,&,,&,&,&,
,&,,&,&,,&                                          ,&,&&,&,&,
&&,&&,&,&&                                     ,    ,&,,&,&,&,
,&,,&,&,,&                                        , ,&,&&,&,&,
&&,&&,&,&&                                    , ^,  ,&,,&,&,&,
,&,,&,&,,& 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.)                 ,&,,&,&,&,
,&,,&,&,,&                                          ,&,&&,&,&,
&&,&&,&,&&                                          ,&,,&,&,&,
,&,,&,&,,&                                          ,&,&&,&,&,
&&,&&,&,&&                                          ,&,,&,&,&,
,&,,&,&,,&                                          ,&,&&,&,&,