Seven. One to install the new bulb and six to figure out what to do with the old one for the next 10,000 years.
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A whole synod. One to move that the bulb be changed while the others debate until the room spins.
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1,000,001: One to change the bulb and 1,000,000 to rebuild civilization to the point where they need light bulbs again.
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Chips AHOY!!
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