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