Slippery Slope Fallacy

In logic and critical thinking, a slippery slope is a logical device, but it is usually known under its fallacious form, in which a person asserts that some event must inevitably follow from another without any rational argument or demonstrable mechanism for the inevitability of the event in question. A slippery slope argument states that a relatively small first step leads to a chain of related events culminating in some significant effect, much like an Caution Slipper Slope signobject given a small push over the edge of a slope sliding all the way to the bottom.[1] The strength of such an argument depends on the warrant, i.e. whether or not one can demonstrate a process that leads to the significant effect. This type of argument is sometimes used as a form of fear mongering, in which the probable consequences of a given action are exaggerated in an attempt to scare the audience. However, if an argument uses valid reasoning, it would not identify by the slippery-slope approach.[2] The fallacious sense of “slippery slope” is often used synonymously with continuum fallacy, in that it ignores the possibility of middle ground and assumes a discrete transition from category A to category B. Modern usage avoids the fallacy by acknowledging the possibility of this middle ground.

Examples of the slippery slope fallacy:


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