Public debates driven by incomplete scientific data: the cases of evolution theory, global warming and H1N1 pandemic influenza

Details Public debates driven by incomplete scientific data: the cases of evolution theory, global warming and H1N1 pandemic influenza Public debates driven by incomplete scientific data: the cases of evolution theory, global warming and H1N1 pandemic influenza

2010-04-28

arxiv.org/abs/1004.5009v1

Physics

Popular Physics

31 pages, 7 figures

Scientific paper

Public debates driven by incomplete scientific data where nobody can claim absolute certainty, due to current state of scientific knowledge, are studied. The cases of evolution theory, global warming and H1N1 pandemic influenza are investigated. The first two are of controversial impact while the third is more neutral and resolved. To adopt a cautious balanced attitude based on clear but inconclusive data appears to be a lose-out strategy. In contrast overstating arguments with wrong claims which cannot be scientifically refuted appear to be necessary but not sufficient to eventually win a public debate. The underlying key mechanism of these puzzling and unfortunate conclusions are identified using the Galam sequential probabilistic model of opinion dynamics. It reveals that the existence of inflexible agents and their respective proportions are the instrumental parameters to determine the faith of incomplete scientific data public debates. Acting on one's own inflexible proportion modifies the topology of the flow diagram, which in turn can make irrelevant initial supports. On the contrary focusing on open-minded agents may be useless given some topologies. When the evidence is not as strong as claimed, the inflexibles rather than the data are found to drive the opinion of the population. The results shed a new but disturbing light on designing adequate strategies to win a public debate.

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