#¨¨#¨¨#¨##                                          ¨#####¨¨#¨
#¨##¨###¨#                                          #¨¨¨¨#¨###
##¨##¨¨###                                          #¨¨¨###¨¨¨
¨##¨#¨#¨¨¨                                          #¨¨#¨¨#¨¨#
#¨#####¨¨#                                          #¨##¨##¨##
##¨¨¨¨#¨##                                     ¨    ##¨##¨##¨¨
¨#¨¨¨###¨¨                                        ¨ ¨##¨##¨#¨#
##¨¨#¨¨#¨¨                                    ¨ ~¨  #¨##¨#####
¨#¨##¨##¨¨ 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.)                 ¨##¨¨#¨##¨
¨#¨¨##¨##¨                                          #¨#¨###¨#¨
##¨#¨##¨#¨                                          ####¨¨###¨
¨####¨####                                          ¨¨¨#¨#¨¨##
#¨¨¨##¨¨¨¨                                          ¨¨####¨#¨#
#¨¨#¨#¨¨¨¨                                          ¨#¨¨¨####¨