I guess the cases where you can’t add directly (or with fixed weights) involve genuine normative uncertainty or incommensurability. Or, maybe some cases of two envelopes problems where it’s too difficult or unjustifiable to set a unique common scale and use the Bayesian solution.
Hi Michael.
Effects along different dimensions can be added under expectationaltotal hedonistic utilitarianism, precise credences, and moral realism?
I think not, due to gradations and multiple reference points (even within hedonic scales only).