. A literal reading of the Bible leads to ludicrous conclusions, but if one perceives that the game is all or nothing, then perhaps one must assert the truth value of Genesis as if it was a scientific treatise.
I think the "all or nothing" thing is a very important insight. I've often found myself profoundly disturbed by my inability to solve some bizarre moral dilemma (something really weird, like "If you had the power to perfectly control what sort of personality types people were born with, what is the optimum mixture of personalities to create?") and felt like my inability to solve these problems somehow puts all of ethics in doubt. It's like I feel that not knowing the proper way to behave in a bizarre science-fictional moral dilemma means that there is no reason to help people, save lives, and do other obviously good things. Even though I know it's irrational, it sometimes makes me physically sick. I have to keep reminding myself that my beliefs should be more robust than that, that a belief system so fragile that it can shatter with one tiny inconsistency is not one worth having.
I imagine that this is how fundamentalists must feel when they spot an inconsistency in one of their sacred texts.
If you had the power to perfectly control what sort of personality types people were born with, what is the optimum mixture of personalities to create?
I don't know the answer to this question but that's because I don't have a superhuman understanding of psychology. I don't see how it poses any moral problems.
With my very limited current layperson's knowledge, in terms of the big 5 I would probably increase Openness and Conscientiousness, leave Agreeableness and Extraversion at current rates, and decrease Neuroticism.
Related to: Reason as memetic immune disorder, Commentary on compartmentalization
On the old old gnxp site site Razib Khan wrote an interesting piece on a failure mode of nerds. This is I think something very important to keep in mind because for better or worse LessWrong is nerdspace. It deals with how the systematizing tendencies coupled with a lack of common sense can lead to troublesome failure modes and identifies some religious fundamentalism as symptomatic of such minds. At the end of both the original article as well as in the text I quote here is a quick list summary of the contents, if you aren't sure about the VOI consider reading that point by point summary first to help you judge it. The introduction provides interesting information very useful in context but isn't absolutely necessary.
Link to original article.
Introduction
Nerd Failure Mode
This section is the part most relevant to LessWrong:
In sum:
I bolded the note on mass literacy and participation because of the interesting historical conclusion that in the United Stated mass participation in democracy inevitably made the influence of religion on policy greater. It goes against a deep assumption shared by most educated people that "democratic elections" necessarily produce "liberal" or "secular" results. It was particularly evident among pundits and particularly easy to see as foolish with the recent upheavals in the Middle East.
This last rather minor seeming note is perhaps the most relevant part of the article for aspiring rationalist. Not only is it particularly salient for those us inclined to questioning the usefulness of the category "religion" in certain context, but because nearly all of us are not religious. Our bad axioms seem unlikely to originate directly from something like a religious texts, though obviously it is plausible many of our axioms ultimately originate from such sources.Not many of us are Communists either, but we are attracted to highly consistent ideologies. We seem likely to be particularly vulnerable to bad axioms in a way most minds aren't.
So if after some thought and examination you notice that a widely respected and universally endorsed axiom in your society has clear and hard to deny implications that are in practice ignored or even denounced by most people, you should be more willing to dump such axioms than is comfortable.