¨¨¨¨¨~«=##                                          ##=«~¨¨¨¨¨
¨~«:=%####                                          ####%=:«~¨
¨~«:=%####                                          ####%=:«~¨
¨¨¨¨¨~««=#                                          #=««~¨¨¨¨¨
¨¨¨¨~««==#                                          #==««~¨¨¨¨
¨~«:=%####                                     ¨    ####%=:«~¨
¨¨¨¨¨~«:%#                                        ¨ #%:«~¨¨¨¨¨
¨¨¨~~:%###                                    ¨ ~¨  ###%:~~¨¨¨
¨~«:=%#### 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.)                 ####%=:«~¨
¨¨¨¨¨«:=##                                          ##=:«¨¨¨¨¨
¨~«:=%####                                          ####%=:«~¨
¨~«:=%####                                          ####%=:«~¨
¨¨¨~«:==##                                          ##==:«~¨¨¨
¨~«:=%####                                          ####%=:«~¨