.~~**£££@@ @@£££**~~.
.~~**£@@## ##@@£**~~.
.~~**£@@## ##@@£**~~.
.~~**£@@## ##@@£**~~.
.~**£@@### ###@@£**~.
....~~*@@@ . @@@*~~....
.....~***@ . @***~.....
.......~*@ . ~. @*~.......
.......~*@ 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.) ##@@£**~~.
.~~***££@@ @@££***~~.
.~~**£@@@@ @@@@£**~~.
.~~*****@# #@*****~~.
....~~**£@ @£**~~....
.~~**£@@## ##@@£**~~.