Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M2156

Great Filter

Great Filter
TechnicalHigh supportArtificial Intelligence
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Why haven't we seen aliens? Possibly, in the evolution of life to interstellar civilizations, there exists a very low-probability 'filter' (the Great Filter). Either we have already passed it (extremely lucky), or it still lies ahead (technology will inevitably destroy civilization).

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Sense of existential crisis. Don't take the continuous progress of civilization for granted. Perhaps only a very few civilizations can pass the filter of 'nuclear war' or 'AI out of control'.

anchor

Anchor fast decisions

Refers to a certain extremely difficult threshold that prevents life from evolving from chemistry to interstellar civilization, used to explain the Fermi Paradox (why we haven't seen aliens). The mechanism is that civilizations are filtered out at some stage.

MINIMUM ACTION

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Source support: Explicit

  • link
    en.wikipedia.orghttps://en.wikipedia.org/wiki/Great_FilterZH · Explicit
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