[ITS] A {display hack} originally due to Bill Gosper. Many convergent
lines are drawn on a color monitor in such a way that every pixel
struck has its color incremented. The lines all have one endpoint in
the middle of the screen; the other endpoints are spaced one pixel
apart around the perimeter of a large square. The color map is then
repeatedly rotated. This results in a striking, rainbow-hued,
shimmering four-leaf clover. Gosper joked about keeping it hidden
from the FDA (the U.S.'s Food and Drug Administration) lest its
hallucinogenic properties cause it to be banned.
[glossary]
[Reference(s) to this entry by made by: {display hack}{psychedelicware}]