  On one such suggestion, many moral disagreements are particularly pervasive and hard to resolve. The disagreements which arise for example in the sciences can generally, it is held, be attributed to a lack of evidence, bias, limited reasoning skills or similar cognitive shortcomings and tend to go away when progress has been made in removing those obstacles. That situation, however, is contrasted with the one which is supposed to obtain in ethics, where many disagreements allegedly would survive such measures and persist even if none of its parties were affected by any factor which could plausibly be regarded as an epistemic shortcoming. That is, the idea is that disagreements would persist even in circumstances that are ideal in the sense that they are the most favorable circumstances that human inquirers can hope to achieve. This is why some theorists assign special weight to disagreements among philosophers, who presumably are the most likely candidates of being in such circumstances, given their training, familiarity with each other’s arguments, and the time they have spent on reflecting on the issues.