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As the study of argument is of clear importance to the reasons that we hold things to be true, logic is of essential importance to rationality. Arguments may be logical if they are "conducted or assessed according to strict principles of validity", [1] while they are rational according to the broader requirement that they are based on reason and knowledge.
In some cases, also non-mental results of rational processes may qualify as rational. For example, the arrangement of products in a supermarket can be rational if it is based on a rational plan. [6] [2] The term "rational" has two opposites: irrational and arational. Arational things are outside the domain of rational evaluation, like digestive ...
Gerd Gigerenzer has criticized the framing of cognitive biases as errors in judgment, and favors interpreting them as arising from rational deviations from logical thought. [ 6 ] Explanations include information-processing rules (i.e., mental shortcuts), called heuristics , that the brain uses to produce decisions or judgments.
Irrationality is cognition, thinking, talking, or acting without rationality.. Irrationality often has a negative connotation, as thinking and actions that are less useful or more illogical than other more rational alternatives.
Irrational behavior can be useful when used tactically in certain conflict, game and escape situations. The moves of an irrational opponent are not (or only very limitedly) predictable. An irrational negotiator cannot be put under rational pressure. [52] An indirect tactic is the rational use of the irrationalism of third parties.
Rational irrationality is not doublethink and does not state that the individual deliberately chooses to believe something he or she knows to be false. Rather, the theory is that when the costs of having erroneous beliefs are low, people relax their intellectual standards and allow themselves to be more easily influenced by fallacious reasoning, cognitive biases, and emotional appeals.
Rationalization encourages irrational or unacceptable behavior, motives, or feelings and often involves ad hoc hypothesizing. This process ranges from fully conscious (e.g. to present an external defense against ridicule from others) to mostly unconscious (e.g. to create a block against internal feelings of guilt or shame).
There may be evolutionary causes for irrational beliefs—irrational beliefs may increase our ability to survive and reproduce. One more reason for irrational beliefs can perhaps be explained by operant conditioning. For example, in one study by B. F. Skinner in 1948, pigeons were awarded grain at regular time intervals regardless of their ...