AskDefine | Define indeterminism

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English

Noun

indeterminism
  1. (ethics; religion) The doctrine that all human actions are not so much determined by the preceding events, conditions, causes or karma as by deliberate choice or free will.

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Extensive Definition

Non-determinism redirects here. For similar articles, see Indeterminacy
Indeterminism is the philosophical belief contradictory to determinism: that there are events which do not correspond with determinism (and therefore are uncaused in some sense).
For instance:
  1. No event is caused at all
  2. Some events are not caused at all
  3. Some events are partially caused
  4. All events are partially caused.
This can be expressed as events being the manifestation of various energies. Energy has no cause, since energy can not be created or destroyed i. e. caused. Currently there is no way for science to measure the entire Universe, therefore there is no way to validate scientifically, determinism. Indeterminacy is a more general idea.

Science

At one time, it was assumed in the physical sciences that if the behavior observed in a system cannot be predicted, the problem is due to lack of fine-grained information, so that a sufficiently detailed investigation would eventually result in a deterministic theory ("If you knew exactly all the forces acting on the dice, you would be able to predict which number comes up"). However, the advent of quantum mechanics removed the underpinning from that approach, with the claim that (at least according to the Copenhagen interpretation) the most basic constituents of matter behave indeterministically, in accordance with such properties as the uncertainty principle. Quantum indeterminism was controversial on its introduction, with Einstein among the opposition, but gradually gained ground. Experiments confirmed the correctness of quantum mechanics, with a test of the Bell's theorem by Alain Aspect being particularly important because it showed that determinism and locality cannot both be true. Bohmian quantum mechanics remains the main attempt to preserve determinism (albeit at the expense of locality).

Types of cause

Causes are often distinguished into two types: Necessary and sufficient. Necessary causes: If x is a necessary cause of y; then the presence of y necessarily implies that x preceded it. The presence of x, however, does not imply that y will occur. Sufficient causes: If x is a sufficient cause of y, then the presence of x necessarily implies the presence of y. However, another cause z may alternatively cause y. Thus the presence of y does not imply the presence of x.
As Daniel Dennett points out in Freedom Evolves, it is possible for everything to have a necessary cause, even while indeterminism holds and the future is open, because a necessary cause does not lead to a single inevitable effect. Thus "everything (does not) have a cause" is not a clear statement of (in)determinism.

Free will

One of the important philosophical implications of determinsim is that, according to incompatibilists, it undermines many versions of free will. Correspondingly, believers in free will often appeal to physical indeterminism. (See compatibilism for a third option.)

External links

indeterminism in Danish: Indeterminisme
indeterminism in German: Indeterminismus
indeterminism in French: Indéterminisme
indeterminism in Hebrew: אינדטרמיניזם
indeterminism in Dutch: Indeterminisme
indeterminism in Polish: Indeterminizm
indeterminism in Russian: Индетерминизм
indeterminism in Ukrainian: Волюнтаризм
indeterminism in Chinese: 非决定论
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