In several papers, John Norton has argued that Bayesianism cannot handle ignorance adequately due to its inability to distinguish between neutral and disconfirming evidence. He argued that this inability sows confusion in, e.g., anthropic reasoning in cosmology or the Doomsday argument, by allowing one to draw unwarranted conclusions from a lack of knowledge. Norton has suggested criteria for a candidate for representation of neutral support. Imprecise credences (families of credal probability functions) constitute a Bayesian-friendly framework that allows us to avoid inadequate neutral priors and better handle ignorance. The imprecise model generally agrees with Norton's representation of ignorance but requires that his criterion of self-duality be reformulated or abandoned.
The Doomsday argument and anthropic reasoning are two puzzling examples of
probabilistic confirmation. In both cases, a lack of knowledge apparently
yields surprising conclusions. Since they are formulated within a Bayesian
framework, they constitute a challenge to Bayesianism. Several attempts, some
successful, have been made to avoid these conclusions, but some versions of
these arguments cannot be dissolved within the framework of orthodox
Bayesianism. I show that adopting an imprecise framework of probabilistic
reasoning allows for a more adequate representation of ignorance in Bayesian
reasoning and explains away these puzzles.Comment: 15 pages, 1 figure. To appear in Philosophy of Science (PSA 2014
The low representation (< 30%) of women in philosophy in english-speaking countries has generated much discussion, both in academic circles and the public sphere. It is sometimes suggested (Haslanger 2009) that unconscious biases, acting at every level in the field, may be grounded in gendered schemas of philosophers and in the discipline more widely, and that actions to make philosophy a more welcoming place for women should address such schemas. However, existing data are too limited to fully warrant such an explanation, which therefore will not satisfy those in favor of the status quo or those who argue against the need to address gender imbalance. In this paper, we propose measures to improve the profession that ought to be implemented without referring explicitly to this underrepresentation or to the climate for women and other underrepresented groups. such recommendations are based on empirical research already carried out in other disciplines and do not rest on whether it is possible to identify the cause of this low representation. We argue that we need not wait for new or better data to ensure that fairer practices are enacted for women, other underrepresented groups, and everybody else, if only out of precaution.
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