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Why Post-Training Can’t Fix AI Alignment | Dylan Hadfield-Menell (MIT)

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Why Post-Training Can’t Fix AI Alignment | Dylan Hadfield-Menell (MIT)

Why it matters

The talk presents Hadfield-Menell's hypothesis that post-training alignment can be undone cheaply, citing abliterated models and reported failures of prompt-injection defenses. It considers moving alignment into pre-training and discusses data filtering, synthetic documents, control tokens, and the trade-off between cost and flexibility.

Discuss: If alignment moves into pre-training, how might researchers balance the cost of changing training data against the flexibility to revise alignment targets?

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Watch: https://www.youtube.com/watch?v=A0dgodaKyac

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