@,,@,@,@,@                                          @,@,@,,@@,
@,@@,@,@,,                                          @,@,@,@,@,
@,,@,@,@,@                                          @,@,@,@,@,
@,@@,@,@,,                                          @,@,@,@,@,
@,,@,@,@,@                                          @,@,@,@,@,
@,@@,@,@,,                                     ,    @,@,@,@,@,
@,,@,@,@,@                                        , @,@,@,@,@,
@,@@,@,@,,                                    , ,,  @,@,@,@,@,
@,,@,@,@,@ 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.)                 @,@,@,@,@,
@,,@,@,@,@                                          @,@,@,@,@,
@,@@,@,@,,                                          @,@,@,@,@,
@,,@,@,@,@                                          @,@,@,@,@,
@,@@,@,@,,                                          @,@,@,@,@,
@,,@,@,@,@                                          @,@,@,@,@,