###@@**~,,                                          ,,~**@@###
###@@**~,,                                          ,,~**@@###
###@@**~,,                                          ,,~**@@###
###@@**~,,                                          ,,~**@@###
#@@**~,,,,                                          ,,,,~**@@#
##@@***~,,                                     ,    ,,~***@@##
###@@**~,,                                        , ,,~**@@###
#@*,,,,,,,                                    , ,,  ,,,,,,,*@#
###@@**~,, 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.)                 ,,,,~***@#
###@@**~,,                                          ,,~**@@###
###@@**~,,                                          ,,~**@@###
###@@**~,,                                          ,,~**@@###
###@@**~,,                                          ,,~**@@###
####@**~,,                                          ,,~**@####