,,###,,,#,                                          ,,,,,,,##,
#,,#,,#,,,                                          ######,,,,
,,,,,,,,#,                                          ,####,,##,
#######,,,                                          ,,##,,,,,,
,#####,,##                                          #,,,,####,
,,###,,,,#                                     ,    ,,##,,##,,
#,,#,,##,,                                        , ,,,,,,,,,#
,,,,,,,,,#                                    , ~,  ########,,
########,, 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.)                 #,,#####,,
####,,####                                          ,,,,###,,#
###,,,,###                                          ###,,#,,,,
,#,,##,,##                                          ##,,,,,##,
,,,,,,,,,#                                          #,,###,,,,
########,,                                          ,,,,#,,###