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Updated: Aug 9, 2025

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Enhanced Genome Editing with Cas9 Ribonucleoprotein in Diverse Cells and Organisms
Published on: May 25, 2018
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Gene Editing, Identity and Benefit
Thomas Douglas1, Katrien Devolder1
1University of Oxford, UK.
Summary
Gene editing human embryos offers moral benefits over genetic selection by creating specific future individuals. However, this benefit argument faces challenges, especially concerning the pre-emption problem in comparative benefit analysis.
Area of Science:
- Bioethics
- Human Embryo Gene Editing
- Genetic Selection
Background:
- Debates exist on the moral implications of human embryo gene editing versus genetic selection for preventing genetic disorders.
- A key distinction proposed is that gene editing benefits specific future individuals, while genetic selection merely replaces them.
Purpose of the Study:
- To construct and defend the 'benefit argument' for gene editing over genetic selection.
- To identify and analyze limitations of the benefit argument, particularly concerning the 'pre-emption problem'.
- To evaluate the impact of revised comparative benefit accounts on the critique of the benefit argument.
Main Methods:
- Philosophical argumentation and conceptual analysis.
- Examination of the standard account of comparative benefit.
- Critique of the benefit argument through logical objection and consideration of revised theories.
Main Results:
- The benefit argument, while plausible, is vulnerable to objections, especially when the edited child would exist regardless of the intervention.
- The standard account of comparative benefit faces the 'pre-emption problem', potentially undermining the benefit argument.
- Critiques of the benefit argument remain valid even when considering revised accounts of comparative benefit.
Conclusions:
- The moral preference for gene editing over genetic selection based on the benefit argument is conditional and faces significant philosophical challenges.
- Further refinement of ethical frameworks for evaluating novel reproductive technologies like gene editing is necessary.
- The 'pre-emption problem' highlights complexities in assessing comparative benefits in reproductive decision-making.
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