Robert Capa he really existed?
The mysteries of the prophecies self-fulfilling
Cascades collective
The runaway group from a vague statement or rumor can have dramatic effects. In 1973 the rumor in the United States that the oil shock would cause a shortage of toilet paper . People rushed to replenish their stocks as a precaution. This group has actually led to rush an early shortage that created panic, validating the rumor afterwards. Financial bubbles or obey stock crash the same principle, without any need to blame traders or hedge funds: already in 1637 the price of tulip bulb reached twenty times the annual salary of a craftsman, creating the first bubble history . How is such madness possible? Very simply: it is enough that each reasons not based on what he thinks is a fair price, but based on what he believes to be the opinion of the market on this price (even if he is even convinced that the market is wrong). optimism of some other cause for optimism that in turn reinforces the general optimism. And the opposite in case of a crash.
Even in normal times self-fulfilling prophecies are common on the stock markets. They work much like the reasoning by induction math: if the market is influenced by the number of sunspots, just a recognized expert shows that such influence was indeed observed in the past and predict that of such influence will endure. Even if everyone thinks it's crazy, everyone's interest to take into account the possibility others will follow this prediction. Therefore speculate as if each thought himself the prediction, which validates it for sure. You laugh but for the Dow Jones, the correlation is quite spectacular, but we understand exactly why:
Comparative evolution of the average Dow Jones (DJIA averaged over 11 years) and the number of sunspots ( Source: pdf)
polls may have the same effect, when each voter adjusts its own electoral strategy based on polls, as if it were a reality indifferent his own choice. Polls can and credible a particular application. In 2002 they had the opposite effect (self-defeating prophecy) because voters left scattered their votes gained by believing instead of Jospin in the second round .
loops inter-individual
If prejudices die hard, partly because they often have this gift of self-realization. Our expectations conscious (or unconscious as we saw in this post ) influence our behavior in order to confirm them. This loop behavior known to Pygmalion effect was dramatically demonstrated in laboratory rats. Researchers have been led to believe that a student group of rats (actually chosen at random) were gifted to exit a maze, in contrast to another group of rats had no particular aptitude. Students have they been more friendly or friendlier with the first group? The fact is that both groups of rats are generally performed according to the label they had been assigned (arbitrarily remember). Many experiments similar, with students we had to be particularly gifted examiners have confirmed this strange phenomenon.
Basically, most of the conflicts arises from this kind of self-reinforcing loop when one of mistrust that fuels the other. For such pathological behavior: the morbid jealousy for example, or feeding the paranoia of all the efforts that the entourage is to avoid provoking a new crisis. This is no joke: it gets really paranoid when everyone conspires against you!
Auto-suggestion: the ability to lie to yourself? When
works without anyone except himself, the self-fulfilling prophecy takes on a mystery. The placebo effect, for example, which works because I believe in the prediction that treatment will heal me. Its twin, the nocebo effect that works in reverse, is equally spectacular.
More prosaically, self-suggestion is a powerful engine: it succeeds all the better what we are undertaking convinced (wrongly or rightly) that we will succeed. And like Robert Capa, one reaches heights rarely without a small dose of megalomania. Is this evidence that psychological explain that we have found the best 1991que Athletes are those who are most successful at fooling themselves , that is to say those which occur most easily be satisfied simultaneously a thing and its opposite? Even as Spain has won the World Cup, simply because the octopus had predicted? This strange result would in any case consistent with everything we have just seen: we have more chance of winning if we are convinced we can beat his opponents. But such a belief necessarily requires that we ignore all of its weaknesses. In other words, to be a fighter should learn to lie a little to himself when the time comes. Well, well ...
Sources
The biography of Robert Capa, the site of the BNF who recently had an exhibition.
Wikipedia, as usual
Related posts
Consciousness in flagrante delirium, our good-bad faith
Discrimination in cascades, on the way born and rooted prejudices
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