Logical

Appeal to Consequences

What it is

Arguing that something must be true (or false) because the consequences of it being true would be desirable (or undesirable).

How it works

This fallacy substitutes wishful thinking for evidence. "This can't be true because if it were, it would be terrible" is emotionally compelling but logically empty. The desirability of a conclusion has no bearing on its truth. This is especially powerful when the stakes are high and the truth is genuinely frightening.

Real-world examples

  • •"Climate change can't be real because dealing with it would be too expensive."
  • •"If evolution is true, life has no purpose — so it must be false."
  • •"This treatment must work because the alternative is too horrible to contemplate."

Ethical guidelines

  • ●Truth is independent of our preferences about what is true.
  • ●Avoiding uncomfortable truths prevents appropriate responses to real problems.
  • ●Honest reasoning requires accepting conclusions supported by evidence regardless of their desirability.

How to defend against it

  • ►Separate the question "Is this true?" from "Do I want this to be true?"
  • ►Notice when emotional stakes are driving your evaluation of evidence.
  • ►Accept that some truths are unpleasant — that's a feature of reality, not a flaw in the evidence.

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