##¨¨¨#¨¨#¨                                          ###¨¨¨###¨
#¨#¨¨##¨##                                          #¨¨#¨¨#¨¨#
¨###¨#¨##¨                                          ##¨##¨##¨#
##¨¨####¨#                                          #¨##¨##¨##
¨¨#¨#¨¨¨##                                          ###¨##¨##¨
¨¨####¨¨#¨                                     ¨    ¨¨¨##¨##¨#
#¨#¨¨¨#¨##                                        ¨ ¨¨¨#¨##¨##
¨###¨¨###¨                                    ¨ ^¨  ¨¨¨###¨##¨
¨#¨¨#¨#¨¨# 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.)                 ¨¨¨¨#¨¨¨¨¨
#¨¨##¨#¨#¨                                          #¨¨¨##¨¨¨¨
##¨#¨#####                                          ##¨¨#¨#¨¨¨
#¨####¨¨¨¨                                          ¨¨#¨####¨¨
###¨¨¨#¨¨¨                                          #¨###¨¨¨#¨
#¨¨#¨¨##¨¨                                          ¨##¨¨#¨¨##