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