.:~^%$&¶@#                                          #@¶&$%^~:.
.:~^^^%%%&                                          &%%%^^^~:.
.:~^%$&¶@#                                          #@¶&$%^~:.
.....:^^$&                                          &$^^:.....
.:~^%$&¶@#                                          #@¶&$%^~:.
.:~^%$&&&¶                                     .    ¶&&&$%^~:.
.:~^%%%%%&                                        . &%%%%%^~:.
.:~^%$&¶@@                                    . :.  @@¶&$%^~:.
.:~^%$&¶@# GULL CALL.                    .      . : #@¶&$%^~:.
.:~^^%$$¶@ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @¶$$%^^~:.
....~^^$&@                                          @&$^^~....
.:~^%$&¶@# THE  SEAGULL IS A  METAPHYSICS  TRICK; A #@¶&$%^~:.
.....:~^%& 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 @&%~:.....
.:~^%$&¶@# ENTIRE VOLUME                            #@¶&$%^~:.
.:~^%%$$¶@                                          @¶$$%%^~:.
.:~^%%$&&& A SEAGULL  CAN BE  DEFINED BY AS  LITTLE &&&$%%^~:.
.:::^^^$$& AS  FIVE  VERTICES;  SIX  TRIANGLES.  (I &$$^^^:::.
.....::^$& WOULD  RECOMMEND  HANDLING IN  SWARMS OF &$^::.....
.:~^%$&¶¶¶ AT LEAST A DOZEN BIRDS.)                 ¶¶¶&$%^~:.
....:^^^$&                                          &$^^^:....
..:~^^$&&¶                                          ¶&&$^^~:..
...:~^%$&@                                          @&$%^~:...
.:~^%$&¶@@                                          @@¶&$%^~:.
.:~^%$$$&&                                          &&$$$%^~:.