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