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Related Experiment Video

Updated: Jul 12, 2026

Measuring Caenorhabditis elegans Life Span in 96 Well Microtiter Plates
12:23

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Published on: March 18, 2011

Life-extension and the Malthusian Objection.

John K Davis1

  • 1East Carolina University, Greenville, NC, USA. jdavies95@utk.edu

The Journal of Medicine and Philosophy
|April 9, 2005
PubMed
Summary

Life-extension may lead to Malthusian concerns, but denying it harms those who desire it more. The potential loss of life-years outweighs overcrowding risks, justifying continued life-extension research and availability.

Area of Science:

  • Bioethics
  • Longevity Research
  • Population Studies

Background:

  • The possibility of dramatically extending human lifespan is increasing.
  • Bioethicists raise concerns about potential Malthusian consequences of life-extension, such as overpopulation and resource scarcity.
  • These concerns stem from the idea of accumulating 'Methuselahs' across generations.

Purpose of the Study:

  • To propose a 'Life-Years Response' to the Malthusian objection against life-extension.
  • To evaluate the ethical justification for restricting life-extension development and availability.
  • To compare the harms of denying life-extension versus the harms of potential Malthusian consequences.

Main Methods:

  • Ethical argument analyzing harms and benefits.
Keywords:
Death and EuthanasiaPhilosophical Approach

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Last Updated: Jul 12, 2026

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Published on: March 18, 2011

Solid Plate-based Dietary Restriction in Caenorhabditis elegans
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Published on: May 28, 2011

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Published on: May 18, 2022

  • Comparative analysis of life-years lost versus Malthusian conditions endured.
  • Focus on the value of individual life-years and the potential for a minority to seek life-extension.
  • Main Results:

    • Denying life-extension to a minority who desire it results in a greater loss of potential life-years compared to the Malthusian harms faced by a majority who do not.
    • Losing an extra year of life is ethically considered a greater harm than enduring a year of Malthusian conditions.
    • Individuals seeking extended life have more 'life-years at stake.'

    Conclusions:

    • The threat of overcrowding and resource shortages due to life-extension is not sufficient to justify societal restrictions on its development or availability.
    • The ethical imperative to preserve individual life-years for those who desire them outweighs potential Malthusian concerns.
    • Continued research and availability of life-extension technologies should be supported based on this ethical framework.