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smoking clover
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[ITS] A display hack originally due to Bill Gosper. Many
convergent lines are drawn on a colour monitor in AOS mode
(so that every pixel struck has its colour 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 colour 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 US's Food and Drug Administration)
lest its hallucinogenic properties cause it to be banned.
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