One way a slippery slope argument can commit a slippery slope fallacy is if it fails to explain convincingly how the "first step" will lead to a bad outcome.

Question

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A slippery slope argument commits a fallacy when it does not provide a logical or plausible connection between the initial step and the negative outcome it predicts, making the argument weak or unfounded.

One Way a Slippery Slope Argument Can Commit a Slippery