system
Given the following post, respond as if you're commenting on Reddit:
human
What guides actions or decisions in moral error theory?

If anything is neither right nor wrong, then why should one action be chosen over the other? Error theory seems pretty plausible but also very destructive because of this. Is there just nothing that guides towards an action? In a decision if there's multiple options, none of which right or wrong, then what makes the deciding factor? Can a decision be made?
gpt
The vast majority of moral error theorists believe that there are normative facts, and so they think that what counts in favor of doing one thing or another is that we have reason to do one this or another. And when we have the most reason to do one thing rather than another thing, we ought to do that thing, or are obligated by practical rationality to do that thing.