 On the other hand, it can create an unhealthy competition and incentives to publish poorly supported findings (quantity over quality), which can be detrimental to scientific progress.Priority becomes a difficult issue usually in the context of priority disputes, where the priority for a given theory, understanding, or discovery comes into question.In most cases historians of science disdain retrospective priority disputes as enterprises which generally lack understanding about the nature of scientific change and usually involve gross misreadings of the past to support the idea of a long-lost priority claim.