###¤%†^-,.                                          .,-^†%¤###
##¤%†^-,..                                          ..,-^†%¤##
#¤%†^-,...                                          ...,-^†%¤#
¤%†^-,....                                          ....,-^†%¤
%†^-,.....                                          .....,-^†%
¤%†^-,....                                     .    ....,-^†%¤
#¤%†^-,...                                        . ...,-^†%¤#
##¤%†^-,..                                    . ,.  ..,-^†%¤##
###¤%†^-,. 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.)                 ....,-^†%¤
#¤%†^-,...                                          ...,-^†%¤#
##¤%†^-,..                                          ..,-^†%¤##
###¤%†^-,.                                          .,-^†%¤###
##¤%†^-,..                                          ..,-^†%¤##
#¤%†^-,...                                          ...,-^†%¤#