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Greene contra Ethics (Railgun Remix)

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A loose reconstruction, avoiding premises about which factors are morally relevant.

1. Ethical judgements are explained by a dual-process theory, which distinguishes faster from slower processes.

2. Faster processes are unreliable in unfamiliar* situations.

3. Therefore, we should not rely on faster process in unfamiliar* situations.

4. When philosophers rely on not-justified-inferentially premises, they are relying on faster processes.

5. We have reason to suspect that the moral scenarios and principles philosophers consider are unfamiliar situations.

6. Therefore, not-justified-inferentially premises about particular moral scenarios, and debatable principles, cannot be used in ethical arguments where the aim is knowledge.

Which comparison:

Ethics vs Linguistics or Ethics vs Physics?