Mike Godwin coined a law (now known as Godwinâ€™s Law) that states: â€œAs an online discussion grows longer, the probability of a comparison involving Nazis or Hitler approaches one.â€?
This makes sense. As the discussion drags on, people start running out of fresh or relevant arguments, begin repeating themselves, lose their tempers, reach for something new to say, and Hitler/Nazi comparisons inevitably follow.
But Godwin”s Law has been extended beyond its original intent and is now used as a decision rule to indicate that a discussion has ceased to be meaningful and should be terminated. In other words, as soon as the Hitler/Nazi comparison is brought into any discussion where it is not relevant, the Godwin Rule can be invoked to say that the discussion is over and the person who introduced the Hitler/Nazi motif has lost the argument.