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    Carmelics

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    LoyalLoyalJusticeJustice
    Made withinDC&Austin
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    Home/Original/inverse
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    Inverse View

    It is not the case that For altruism to evolve, recipients of altruistic actions must have a greater than average probability of being altruists themselves.

    ?Set your confidence on the premises below to see your aggregate.

    Reasons For

    2 perspectives
    Reason for 1 of 2
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    • 1.Kin selection (Hamilton 1964) shows altruism can evolve when recipients share genes by common descent, not by behavioral correlation among non-kin.
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    • 2.The claim conflates population-level statistical frequency with the distinct genetic relatedness coefficient (r) that actually drives inclusive fitness calculations.
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    Reason for 2 of 2
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    • 1.Multilevel selection theory (Sober & Wilson 1998) demonstrates that altruism can evolve when altruist-dense groups outcompete defector-dense groups, regardless of within-group recipient identity.
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    • 2.If between-group selection pressure is sufficiently strong, altruistic traits spread even when individual recipients are no more likely than average to be altruists themselves.
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    Reasons Against

    1 perspective
    Reason against
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    • 1.Altruism evolving requires that altruists and recipients both carry copies of the altruistic gene.
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    • 2.A greater than average probability of recipients being altruists ensures the shared-gene condition is met.
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