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27Lives worth living and the danger of ignoring non-identity limits on genetic preferenceJournal of Medical Ethics 52 (2): 133-134. 2026.In this short paper, I detail a case against Dr Guido Pennings’s latest publication in the Journal of Medical Ethics, titled ‘The moral obligation to have genetically related children”. I argue that Pennings, despite raising awareness of issues of bioethical and scientific import, fatally neglects to interact with a central debate in reproductive ethics: the non-identity problem (NIP). Taking the NIP seriously, we can see that the moral obligation that Pennings argues for falls victim to the sam…Read more
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26The Parental Gambit: Moral Luck and Lives Worth LivingJournal of Bioethical Inquiry 1-9. forthcoming.In this article I aim to paint a novel picture: that parents who birth children with lives worth living are cases of moral good luck. To do this, I paint the standard picture of moral luck, and then extend this to show that childbirth is, in essence, an exercise in moral luck. I refer to this as the Parental Gambit. In reflecting about how ex ante knowledge informs our biases in evaluating the deontic status of moral luck cases, I posit the Resultant Moral Luck Asymmetry of Parenthood, which sta…Read more
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379Lives worth living and the danger of ignoring non-identity limits on genetic preferenceJournal of Medical Ethics. 2025.In this short paper, I detail a case against Dr Guido Pennings’s latest publication in the Journal of Medical Ethics, titled ’The moral obligation to have genetically related children”. I argue that Pennings, despite raising awareness of issues of bioethical and scientific import, fatally neglects to interact with a central debate in reproductive ethics: the non-identity problem (NIP). Taking the NIP seriously, we can see that the moral obligation that Pennings argues for falls victim to the sam…Read more
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114Why the irremediability requirement is not sufficient to deny psychiatric euthanasia for patients with treatment-resistant depressionJournal of Medical Ethics 50 (11): 753-757. 2024.Treatment-resistant depression (TRD) holds centrality in many debates regarding psychiatric euthanasia. Among the strongest reasons cited by opponents of psychiatric euthanasia is the uncertainty behind the irremediability of psychiatric illnesses. According to this argument, conditions that cannot be considered irremediable imply that there are possible remedies that remain for the condition. If there are possible remedies that remain for the condition, then patients with that condition cannot …Read more
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61From Abstinence to Assistance: Antinatalism's Unexpected Endorsement of the Principle of Procreative BeneficenceBioethics 39 (7): 693-699. 2025.This essay begins from the point that developments in antinatalism, or the view that it is wrong to bear children, place legitimate pressures on prospective parents to seriously consider the harms of bringing their prospective children into existence. This essay does not defend antinatalism but instead considers an upshot of bioethical import if one takes these antinatalist pressures seriously. Attending to the debate on the normative legitimacy of Savulescu's Principle of Procreative Beneficenc…Read more
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132Best to possibly not be: A prudential argument for antinatalismBioethics 38 (8): 722-727. 2024.This article starts by examining the present state of death ethics by attending to the euthanasia debate. Given that voluntary active euthanasia has seen strong support in the academic community, insights on the choiceworthiness of continued existence may be derived. Having derived cases of choiceworthy nonexistence (which I refer to as choiceworthy nonexistence [CNE] cases), I extend these intuitions to lives not worth starting, or choiceworthy nonexistence for potential people (which I refer t…Read more
Marcus T.L. Teo
National University of Singapore
Centre for Biomedical Ethics, Yong Loo Lin School of Medicine, National University of Singapore
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Centre for Biomedical Ethics, Yong Loo Lin School of Medicine, National University of SingaporeDoctoral student
Singapore, Singapore