####*=*=,.                                          .,=*=*####
####*=*=,.                                          .,=*=*####
####*=*=,.                                          .,=*=*####
####*=*=,.                                          .,=*=*####
####*=*=,.                                          .,=*=*####
##*===....                                     .    ....===*##
##==,.....                                        . .....,==##
#==*,.....                                    . ,.  .....,*==#
####*=*=,. 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.)                 .,=*=*####
####*=*=,.                                          .,=*=*####
#*==,,....                                          ....,,==*#
#*==*===,.                                          .,===*==*#
####*=*=,.                                          .,=*=*####
##*===,...                                          ...,===*##