#####$=~.,                                          ,.~=$#####
####$=~.,,                                          ,,.~=$####
###$=~.,,,                                          ,,,.~=$###
##$=~.,,,,                                          ,,,,.~=$##
#$=~.,,,,,                                          ,,,,,.~=$#
$=~.,,,,,,                                     ,    ,,,,,,.~=$
=~.,,,,,,,                                        , ,,,,,,,.~=
~.,,,,,,,,                                    , .,  ,,,,,,,,.~
.,,,,,,,,, gull call.                    ,      , . ,,,,,,,,,.
~.,,,,,,,, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ,,,,,,,,.~
=~.,,,,,,,                                          ,,,,,,,.~=
$=~.,,,,,, the seagull is a  metaphysics  trick;  a ,,,,,,.~=$
#$=~.,,,,, world-builder's shortcut,  to  define  a ,,,,,.~=$#
##$=~.,,,, section of  reality and imply  its size: ,,,,.~=$##
###$=~.,,, place  a  flock of birds at the edge and ,,,.~=$###
####$=~.,, make  their  calls  tesselate  over  the ,,.~=$####
#####$=~., entire volume                            ,.~=$#####
####$=~.,,                                          ,,.~=$####
###$=~.,,, a seagull  can be defined  by  as little ,,,.~=$###
##$=~.,,,, as  five  vertices;  six  triangles.  (i ,,,,.~=$##
#$=~.,,,,, would  recommend handling  in swarms  of ,,,,,.~=$#
$=~.,,,,,, at least a dozen birds.)                 ,,,,,,.~=$
=~.,,,,,,,                                          ,,,,,,,.~=
~.,,,,,,,,                                          ,,,,,,,,.~
.,,,,,,,,,                                          ,,,,,,,,,.
~.,,,,,,,,                                          ,,,,,,,,.~
=~.,,,,,,,                                          ,,,,,,,.~=