$*\~^.....                                          .....^~\*$
*\~^......                                          ......^~\*
$*\~^.....                                          .....^~\*$
#$*\~^....                                          ....^~\*$#
##$*\~^...                                          ...^~\*$##
###$*\~^..                                     .    ..^~\*$###
####$*\~^.                                        . .^~\*$####
###$*\~^..                                    . ^.  ..^~\*$###
##$*\~^... gull call.                    .      . ^ ...^~\*$##
#$*\~^.... ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ....^~\*$#
$*\~^.....                                          .....^~\*$
*\~^...... 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.)                 ......^~\*
$*\~^.....                                          .....^~\*$
#$*\~^....                                          ....^~\*$#
##$*\~^...                                          ...^~\*$##
###$*\~^..                                          ..^~\*$###
####$*\~^.                                          .^~\*$####