##%//---.. ..---//%##
####%^/~-. .-~/^%####
####%^/~-. .-~/^%####
#%^^//~--. .--~//^^%#
##^/-..... .....-/^##
####%^/~-. . .-~/^%####
####%^/~-. . .-~/^%####
##%^~~-... . -. ...-~~^%##
####%^/~-. 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.) .--~~/%###
####%^/~-. .-~/^%####
####%^/~-. .-~/^%####
#####%^/~- -~/^%#####
####%^/~-. .-~/^%####
####%^/~-. .-~/^%####