###==~~~-¨                                          ¨-~~~==###
##=~¨¨¨¨¨¨                                          ¨¨¨¨¨¨~=##
##@##%:~-¨                                          ¨-~:%##@##
#@##%=:~-¨                                          ¨-~:=%##@#
##@#%=:~-¨                                          ¨-~:=%#@##
#@##%=:~-¨                                     ¨    ¨-~:=%##@#
#@##%=:~-¨                                        ¨ ¨-~:=%##@#
####%=:~-¨                                    ¨ -¨  ¨-~:=%####
##@#%=:~-¨ 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.)                 ¨-~:=%####
@##%:-¨¨¨¨                                          ¨¨¨¨-:%##@
#%%%%=:~-¨                                          ¨-~:=%%%%#
#%=::-¨¨¨¨                                          ¨¨¨¨-::=%#
####%=:~-¨                                          ¨-~:=%####
@##=~¨¨¨¨¨                                          ¨¨¨¨¨~=##@