The Loop trolley case strikes again! A threat to the Doctrine of Double Effect and the Mere Means Principle

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Main Author: Frederick Choo
Format: Artículo Open Access
Published: Wiley 2025
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author Frederick Choo
author_facet Frederick Choo
Frederick Choo
collection Wiley Open Access
contents The Loop trolley case strikes again! A threat to the Doctrine of Double Effect and the Mere Means Principle Frederick Choo Philosophy and Phenomenological Research AbstractJudith Thomson introduced the Loop variant of the trolley case (Loop Case) which poses a problem for two attractive moral principles: the Doctrine of Double Effect (DDE) and the Mere Means Principle (MMP). In the Loop Case, it seems permissible to divert the trolley. However, both DDE and MMP entail that diverting is impermissible. Hence, these principles give the wrong verdict. Since then, however, various philosophers have argued that the Loop Case does not actually pose a problem for DDE and MMP. One group argues that we should deny that it is permissible to divert in the Loop Case. A second group instead develops arguments to show that DDE and MMP do not entail that diverting in the Loop Case is impermissible. I argue that none of these responses succeeds. Since both trains of thought fail, I maintain that the Loop Case still poses a problem for DDE and MMP—it has made its comeback. 10.1111/phpr.70021 http://creativecommons.org/licenses/by/4.0/
doi_str_mv 10.1111/phpr.70021
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spellingShingle The Loop trolley case strikes again! A threat to the Doctrine of Double Effect and the Mere Means Principle
Frederick Choo
Philosophy and Phenomenological Research
The Loop trolley case strikes again! A threat to the Doctrine of Double Effect and the Mere Means Principle Frederick Choo Philosophy and Phenomenological Research AbstractJudith Thomson introduced the Loop variant of the trolley case (Loop Case) which poses a problem for two attractive moral principles: the Doctrine of Double Effect (DDE) and the Mere Means Principle (MMP). In the Loop Case, it seems permissible to divert the trolley. However, both DDE and MMP entail that diverting is impermissible. Hence, these principles give the wrong verdict. Since then, however, various philosophers have argued that the Loop Case does not actually pose a problem for DDE and MMP. One group argues that we should deny that it is permissible to divert in the Loop Case. A second group instead develops arguments to show that DDE and MMP do not entail that diverting in the Loop Case is impermissible. I argue that none of these responses succeeds. Since both trains of thought fail, I maintain that the Loop Case still poses a problem for DDE and MMP—it has made its comeback. 10.1111/phpr.70021 http://creativecommons.org/licenses/by/4.0/
title The Loop trolley case strikes again! A threat to the Doctrine of Double Effect and the Mere Means Principle
topic Philosophy and Phenomenological Research
url https://onlinelibrary.wiley.com/doi/10.1111/phpr.70021