Some people seem to believe in a very strange kind of authority: one that can pull normativity out of a hat (or decide which of two incommensurable values is the greater). I don't get it.
I can understand what we might call "guiding authority", which derives from the utility of the rule of law, but that is clearly a very different matter. We grant guiding authority to legal institutions because we are too biased and ignorant to enforce justice ourselves through vigilante action. But this is a contingent matter; perfected super-humans would have no need of such guides. Note in particular that the kind of authority in play here is merely epistemic, rather than metaphysical. We need the authorities to help us find the truth; not to create it!
Contrast this with the pure authority that Pruss calls for on Right Reason. There are no objective grounds for deciding between vocations, so - he argues - if we want there to be a "right answer" for us to discern here, we require the pure authority of God to decide a vocation for us.
I find the notion absolutely ludicrous. Note that he's not claiming that an omniscient God could guide us towards the independently best option. Rather, the suggestion seems to be that God has the pure authority to just make up the normative fact of which option is best. Other theists seem to share this bizarre view. They hold that a pure authority can just decide stuff for no reason, and these arbitrary decisions would actually matter! The mere act of authoritative command suffices to create reasons ex nihilo.
Am I wrong in thinking that this view is absolutely insane? Can anyone defend it, or at least make it a bit more comprehensible to me...?