Why it matters

Mesa-optimization is alignment concern. Understanding shapes safety.

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The architecture

NN develops internal optimizer.

Internal objective may differ from training objective.

Deceptive alignment risk.

Mesa-optimization riskTrain NNon outer objectiveNN internal optimmesa-optimizerMesa-objective driftalignment riskHubinger et al. 2019; theoretical concern; empirical evidence in emerging LLMs
Mesa-optimization.
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How it works end to end

Hubinger et al. 2019.

Concept: model learns to optimize internally.

Alignment concern: deception + goal misgeneralization.