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An­thropic shadow

TagLast edit: Jul 12, 2022, 12:14 AM by Pablo

Anthropic shadow is the phenomenon involved when attempts to estimate the magnitude of a catastrophic or existential risk are biased by the fact that they are implicitly conditioning on the existence of human observers.

An event severe enough to destroy all present observers and prevent the emergence of any future observers will necessarily leave no observable traces of its past existence. Such an anthropic effect will bias any attempt to estimate the risk of human extinction based on observed frequencies, causing an underestimation of actual risk.

Milan Ćirković, Anders Sandberg and Nick Bostrom have developed a model to quantify and correct for this effect.[1]

Further reading

Ćirković, Milan M., Anders Sandberg & Nick Bostrom (2010) Anthropic shadow: observation selection effects and human extinction risks, Risk Analysis, vol. 30, pp. 1495–1506.

Related entries

anthropics | estimation of existential risk | existential risk | global catastrophic risk

  1. ^

    Ćirković, Milan M., Anders Sandberg & Nick Bostrom (2010) Anthropic shadow: observation selection effects and human extinction risks, Risk Analysis, vol. 30, pp. 1495–1506.

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