Accounts of public reason disagree as to the conditions a reason must meet in order to qualify as public. On one prominent account, a reason is public if, and only if, it is shareable between citizens. The shareability account, I argue, relies on an implausibly demanding assumption regarding the epistemic capabilities of citizens. When more plausible, limited, epistemic capabilities are taken into consideration, the shareability account becomes self‐defeating. Under more limited epistemic conditions, few, if any, reasons will be shareable between (...) all reasonable citizens, making the shareability account so demanding that it precludes public reasoning altogether. (shrink)

According to the ‘expertise defence’, experimental findings suggesting that intuitive judgments about hypothetical cases are influenced by philosophically irrelevant factors do not undermine their evidential use in (moral) philosophy. This defence assumes that philosophical experts are unlikely to be influenced by irrelevant factors. We discuss relevant findings from experimental metaphilosophy that largely tell against this assumption. To advance the debate, we present the most comprehensive experimental study of intuitive expertise in ethics to date, which tests five well- known biases of (...) judgment and decision-making among expert ethicists and laypeople. We found that even expert ethicists are affected by some of these biases, but also that they enjoy a slight advantage over laypeople in some cases. We discuss the implications of these results for the expertise defence, and conclude that they still do not support the defence as it is typically presented in (moral) philosophy. (shrink)