¨¨¨¨¨¨¨¨¨¨ #¨¨¨#¨¨¨¨¨
########## ¨¨#¨¨¨####
########## ¨¨¨¨#¨¨###
########## ###¨¨¨¨¨##
#########¨ ¨#¨¨###¨¨#
########¨¨ ¨ ¨¨¨¨¨#¨¨¨¨
¨######¨¨# ¨ ####¨¨¨##¨
¨¨####¨¨¨¨ ¨ -¨ ###¨¨#¨¨¨¨
#¨¨##¨¨##¨ 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.) ¨¨####¨¨¨¨
#¨¨##¨¨##¨ #¨¨##¨¨###
¨¨¨¨¨¨¨¨¨¨ ¨¨¨¨¨¨¨¨##
¨########¨ ¨######¨¨¨
¨¨######¨¨ ¨¨####¨¨##
¨¨¨####¨¨¨ #¨¨##¨¨¨¨¨