Nirvana fallacy

De WikiUpLib
Révision datée du 28 septembre 2015 à 11:08 par Admin (discussion | contributions)
Aller à : navigation, rechercher
Nirvana fallacy
From Wikipedia, the free encyclopedia

The nirvana fallacy is a name given to the informal fallacy of comparing actual things with unrealistic, idealized alternatives.[1] It can also refer to the tendency to assume that there is a perfect solution to a particular problem. A closely related concept is the perfect solution fallacy.

By creating a false dichotomy that presents one option which is obviously advantageous—while at the same time being completely implausible—a person using the nirvana fallacy can attack any opposing idea because it is imperfect. Under this fallacy, the choice is not between real world solutions; it is, rather, a choice between one realistic achievable possibility and another unrealistic solution that could in some way be "better".

Contents

    1 History
    2 Perfect solution fallacy
        2.1 Examples
    3 See also
    4 References
    5 Further reading

History

In La Bégueule (1772), Voltaire wrote Le mieux est l'ennemi du bien, which is often translated as "The perfect is the enemy of the good" (literally: "The best is the enemy of the good").[citation needed]

The nirvana fallacy was given its name by economist Harold Demsetz in 1969,[2][3] who said:[1]

    The view that now pervades much public policy economics implicitly presents the relevant choice as between an ideal norm and an existing "imperfect" institutional arrangement. This nirvana approach differs considerably from a comparative institution approach in which the relevant choice is between alternative real institutional arrangements.

Perfect solution fallacy
	This section does not cite any references or sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. (March 2015)

The perfect solution fallacy is a related informal fallacy that occurs when an argument assumes that a perfect solution exists or that a solution should be rejected because some part of the problem would still exist after it were implemented. This is an example of black and white thinking, in which a person fails to see the complex interplay between multiple component elements of a situation or problem, and, as a result, reduces complex problems to a pair of binary extremes.

It is common for arguments which commit this fallacy to omit any specifics about exactly how, or how badly, a proposed solution is claimed to fall short of acceptability, expressing the rejection only in vague terms. Alternatively, it may be combined with the fallacy of misleading vividness, when a specific example of a solution's failure is described in emotionally powerful detail but base rates are ignored (see availability heuristic).

The fallacy is a type of false dilemma.
Examples

Posit (fallacious)
    These anti-drunk driving ad campaigns are not going to work. People are still going to drink and drive no matter what.

    Rebuttal
        Complete eradication of drunk driving is not the expected outcome. The goal is reduction.

Posit (fallacious)
    Seat belts are a bad idea. People are still going to die in car crashes.

    Rebuttal
        While seat belts cannot make driving 100% safe, they do reduce one's likelihood of dying in a car crash.

Posit (fallacious)
    The Umpire Decision Review System (in cricket) is a bad idea. It can't fix all missed calls.

    Rebuttal
        While not all umpiring errors are corrected under the UDRS, it does reduce the number of errors made.

See also

    Appeal to consequences
    Cherry picking
    Choice-supportive bias
    Confirmation bias
    Emotional memory
    Fallacy
    Formal fallacy
    Groupthink
    Magical thinking
    Optimism bias
    Pollyanna principle
    Self-deception
    Self-fulfilling prophecy
    Self-serving bias
    Truthiness
    Valence effect
    Validity
    Wishful thinking

References

    H. Demsetz, "Information and Efficiency: Another Viewpoint", Journal of Law and Economics 12 (April 1969): 1, quoted in Kirzner, Israel M. (1978). Competition and Entrepreneurship. p. 231. ISBN 0-226-43776-0.
    Leeson, Peter T. (2007-08-06). "Anarchy unbound, or: why self-governance works better than you think". Cato Unbound. Cato Institute. Retrieved 2009-07-01.
    Shapiro, Daniel (2007). Is the welfare state justified?. New York: Cambridge University Press. p. 4. ISBN 0-521-86065-2.

Further reading

    Browne, M Neil; Keeley, Stuart M (2004). Asking the right questions: a guide to critical thinking (7th. ed.). Upper Saddle River, NJ: Pearson Prentice Hall. ISBN 978-0-13-182993-0. OCLC 50813342.

[hide]

    v
    t
    e

Informal fallacies
Correlative-based fallacies 	

    False dilemma (Perfect solution fallacy)
    Denying the correlative
    Suppressed correlative

Fallacies of illicit transference 	

    Composition
    Division

Deductive fallacies 	

    Accident
    Converse accident

Inductive fallacies 	

    Sampling bias (Cherry picking
    McNamara fallacy)
    Base rate fallacy / Conjunction fallacy
    False analogy
    Hasty generalization / Slothful induction
    Misleading vividness
    Overwhelming exception

Questionable cause 	

    Animistic (Furtive)
    Correlation proves causation (Cum hoc ergo propter hoc)
    Gambler's (inverse)
    Post hoc
    Regression
    Single cause
    Slippery slope
    Texas sharpshooter
    Third-cause
    Wrong direction

Vagueness / ambiguity 	

    Accent
    Amphibology
    Continuum fallacy / Sorites paradox
    False precision
    Slippery slope

Equivocation 	

    Equivocation
    False attribution
    Quoting out of context
    Loki's Wager
    No true Scotsman
    Reification

Question-begging fallacies 	

    Circular reasoning / Begging the question
    Loaded language (Leading question)
    Compound question / Loaded question
    No true Scotsman

    List-Class article List of fallacies
    Category Other types of fallacy
    Portal Philosophy portal

Categories:

    Logical fallacies





Modèle:Use mdy dates The nirvana fallacy is a name given to the informal fallacy of comparing actual things with unrealistic, idealized alternatives.<ref name=nemsetz/> It can also refer to the tendency to assume that there is a perfect solution to a particular problem. A closely related concept is the perfect solution fallacy.

By creating a false dichotomy that presents one option which is obviously advantageous—while at the same time being completely implausible—a person using the nirvana fallacy can attack any opposing idea because it is imperfect. Under this fallacy, the choice is not between real world solutions; it is, rather, a choice between one realistic achievable possibility and another unrealistic solution that could in some way be "better".

History

In La Bégueule (1772), Voltaire wrote Le mieux est l'ennemi du bien, which is often translated as "The perfect is the enemy of the good" (literally: "The best is the enemy of the good").Modèle:Cn

The nirvana fallacy was given its name by economist Harold Demsetz in 1969,<ref name="Leeson07">Modèle:Cite web</ref><ref name="Shapiro07">Modèle:Cite book</ref> who said:<ref name=nemsetz>H. Demsetz, "Information and Efficiency: Another Viewpoint", Journal of Law and Economics 12 (April 1969): 1, quoted in Modèle:Cite book</ref>
Modèle:Quote

Perfect solution fallacy

Modèle:Unreferenced section

The perfect solution fallacy is a related informal fallacy that occurs when an argument assumes that a perfect solution exists or that a solution should be rejected because some part of the problem would still exist after it were implemented. This is an example of black and white thinking, in which a person fails to see the complex interplay between multiple component elements of a situation or problem, and, as a result, reduces complex problems to a pair of binary extremes.

It is common for arguments which commit this fallacy to omit any specifics about exactly how, or how badly, a proposed solution is claimed to fall short of acceptability, expressing the rejection only in vague terms. Alternatively, it may be combined with the fallacy of misleading vividness, when a specific example of a solution's failure is described in emotionally powerful detail but base rates are ignored (see availability heuristic).

The fallacy is a type of false dilemma.

Examples

Posit (fallacious)
These anti-drunk driving ad campaigns are not going to work. People are still going to drink and drive no matter what.
Rebuttal
Complete eradication of drunk driving is not the expected outcome. The goal is reduction.
Posit (fallacious)
Seat belts are a bad idea. People are still going to die in car crashes.
Rebuttal
While seat belts cannot make driving 100% safe, they do reduce one's likelihood of dying in a car crash.
Posit (fallacious)
The Umpire Decision Review System (in cricket) is a bad idea. It can't fix all missed calls.
Rebuttal
While not all umpiring errors are corrected under the UDRS, it does reduce the number of errors made.

See also

References

Modèle:Reflist

Further reading

Modèle:Informal Fallacy