¨¨##¨¨#¨¨#                                          ##¨¨##¨#¨#
¨#¨#¨##¨#¨                                          ##¨#¨#¨#¨#
¨#¨#¨¨#¨#¨                                          ##¨#¨#¨#¨#
¨#¨#¨##¨#¨                                          ¨#¨#¨#¨#¨#
¨#¨#¨¨#¨#¨                                          ##¨#¨#¨#¨#
¨#¨#¨##¨#¨                                     ¨    ¨#¨#¨#¨#¨#
¨#¨#¨¨#¨#¨                                        ¨ ##¨#¨#¨#¨#
¨#¨#¨##¨#¨                                    ¨ -¨  ¨#¨#¨#¨#¨#
¨#¨#¨¨#¨#¨ 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.)                 ¨#¨#¨#¨#¨#
¨#¨#¨¨#¨#¨                                          ##¨#¨#¨#¨#
¨#¨#¨##¨#¨                                          ¨#¨#¨#¨#¨#
¨#¨#¨¨#¨#¨                                          ##¨#¨#¨#¨#
¨#¨#¨##¨#¨                                          ¨#¨#¨#¨#¨#
¨#¨#¨¨#¨#¨                                          ##¨#¨#¨#¨#