#@@#&^:~^,                                          ,^~:^&#@@#
@#&^^::~^,                                          ,^~::^^&#@
###^~,,,,,                                          ,,,,,~^###
##@@#&^:^,                                          ,^:^&#@@##
@###&^:~^,                                          ,^~:^&###@
@###&^:~^,                                     ,    ,^~:^&###@
#@@#&^:~^,                                        , ,^~:^&#@@#
##^:~^,,,,                                    , ^,  ,,,,^~:^##
#^::~^^^,, 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.)                 ,^~:^&#@##
@@&&:~^^^,                                          ,^^^~:&&@@
#@@#&^:~^,                                          ,^~:^&#@@#
@&:~^^,,,,                                          ,,,,^^~:&@
@@@#&^:~^,                                          ,^~:^&#@@@
@@@#&^:~^,                                          ,^~:^&#@@@