A Novice Was Trying To Fix A Broken Lisp Machine By Turning The Power Off And On.

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A novice was trying to fix a broken lisp machine by turning the
power off and on. Knight, seeing what the student was doing spoke
sternly- "You can not fix a machine by just power-cycling it with no
understanding of what is going wrong."
Knight turned the machine off and on.
The machine worked.
-- AI koan

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