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The various proponents of the DDA differ over how it should be understood. It might be thought that the distinction between doing and allowing reduces to the distinction between action and inaction. As against this, Philippa Foot has argued that some actions, such as pulling the plug on an artificial respirator, should be treated as “allowings.” On her view, the relevant distinction is primarily one between initiating or sustaining a harmful causal sequence, and allowing or enabling a harmful causal sequence (...) to run its course. The view that this is the proper interpretation of the DDA has been challenged by Warren Quinn, who argues that Foot’s distinction either fails to account for our considered intuitions in some cases or collapses back into the action/inaction distinction. Quinn offers an interpretation of the DDA that is closer to the action/inaction distinction, but in which intentions are made to play a significant role. (shrink)