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##@#***«-. gull call. . . - .-«***#@##
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#@#***«-.. 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.) ..-«***#@#
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