Does Ought Imply Can?

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LAWFORD-SMITH, H; Kurthy, M; Sousa, PDate
2017-06-01Source Title
PLoS OnePublisher
Public Library of Science (PLoS)University of Melbourne Author/s
Lawford-Smith, HollyAffiliation
School of Historical and Philosophical StudiesMetadata
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Journal ArticleCitations
LAWFORD-SMITH, H., Kurthy, M. & Sousa, P. (2017). Does Ought Imply Can?. PLoS ONE, 12 (4), pp.1-24. https://doi.org/10.1371/journal.pone.0175206.Access Status
Open AccessAbstract
Most philosophers believe that a person can have an obligation only insofar as she is able to fulfil it, a principle generally referred to as "Ought Implies Can". Arguably, this principle reflects something basic about the ordinary concept of obligation. However, in a paper published recently in this journal, Wesley Buckwalter and John Turri presented evidence for the conclusion that ordinary people in fact reject that principle. With a series of studies, they claimed to have demonstrated that, in people's judgements, obligations persist irrespective of whether those who hold them have the ability to fulfil them. We argue in this paper that due to some problems in their design, Buckwalter & Turri's conclusions may not be warranted. We present the results of a series of studies demonstrating the problems with their design and showing that, with an improved design, people judge that obligation depends on ability after all.
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