According to the Nizkor Project, the Slippery Slope is a fallacy in which a person claims that some event must inevitably follow from another without any argument for the inevitability of the event in question. In most cases, there are a series of steps or gradations between one event and the one in question and no reason is given as to why the intervening steps or gradations will simply be bypassed or omitted. This "argument" has the following form:
An example of a slippery slope fallacy follows: "We have to stop the proposed tuition increase! The next thing you know, they'll be charging $40,000 a semester!"
The slippery slope fallacy occurs because the speaker claims that the introduction of a tuition increase will inevitably lead to excessively high tuition. Raising tuition is under the control of administrators who can limit its increase. The slippery slope argument can function (as here) as a scare tactic.
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