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    Inverse View

    It is not the case that Defection is not fully eliminated even when cooperation spreads to near-fixation in a spatially structured population

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

    Reasons For

    2 perspectives
    Reason for 1 of 2
    ?
    • 1.Nowak & May's spatial models show defector persistence depends on lattice geometry, not a universal structural law.
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    • 2.In small-world and scale-free networks, cooperator clusters can fully envelop and starve peripheral defectors of exploitable boundaries.
      ?

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    • 3.Therefore 'near-fixation with residual defection' describes one topology, not spatially structured populations in general.
      ?

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    Reason for 2 of 2
    ?
    • 1.Axelrod's iterated tournament results demonstrate that reputational mechanisms, absent in purely spatial models, can drive defection to functional extinction.
      ?

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    • 2.Sober and Wilson's multilevel selection framework holds that when group-level selection pressure exceeds individual defection advantage, defection need not persist as a stable strategy.
      ?

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    Reasons Against

    1 perspective
    Reason against
    ?
    • 1.Single defectors on the periphery of a cooperator-dominated population can exploit cooperators at the boundary
      ?

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    • 2.These peripheral defectors survive as persistent 'criminal communities'
      ?

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