I can certainly agree to disagree.
Me too. And since RandFan has indicated that he is too busy to respond, I'll do it for him. Of course, there will be some differences because RF is a member of the Radical Right and I am a Knee-Jerk Liberal. But we agree to disagree on politics.
Not exactly. I believe that whether or not they are necessarily rational or irrational is a matter of opinion rather than fact. I think that I do understand your reasons for wanting to call all of them necessarily irrational, but I disagree that they can all be characterized in that way.
I disagree here, although I prefer to use the terms "less rational" and "more rational" because it avoids using absolutes.
I think things are more rational if they are supported by evidence and less rational if they are not, but have the opportunity to be.
For an example, let's look at the WTC attacks. There are people who believe that the attacks were faked and carried out by some clandestine cabal tied to the CIA or other western powers in order to give themselves more power. Now these beliefs are far from supernatural but they share some things in common. They are not supported by good evidence, even though evidence for such a thing
should be available. They also use the "you can't prove it wrong" defense of their rationality. But are these conspiracy theorists just as rational as those who believe the attacks were carried out by terrorists? I say they are not, because the evidence supports the latter.
Similarly, are those who support supernatural ideas for how the world works just as rational as those who use good, objective evidence for their ideas about the subject? Again, I say they are not. They are less rational, though perhaps not totally irrational.
Furthermore, we all have opinions about all sorts of things that we cannot prove and that we don't fully understand (otherwise they wouldn't be opinions). I believe that opinions are just that -- opinions -- and are not subject to the same scrutiny that would allow them to be called irrational if they were stated as fact. Note that I did not to say that all opinions are necessarily rational.
Opinions should also be subject to scrutiny if one is judging between the legitimacy of various opinions. True, we have incomplete evidence for many, really, all things, but that does not mean that some should and do have more going for them than others. Some things are easy to judge, but others are clearly in the "I don't know" category, such as intelligent life in other solar systems.
If you're claiming it to be a fact that in belief prayer is necessarily irrational, then I believe that you are overstating your case since it would depend on exactly what the belief is. Specifically, Christian belief in prayer is not necessarily irrational unless a Christian believes that any and all prayer is granted by God or something similar.
Would you say that prayer has any observable (by us) effect whatsoever? By this, I mean any effect that could not be achieved by non-prayer means, such as personal happiness.
What is it that you think prayer does? How can you provide objective evidence that it does what you think? If you don't think it requires objective evidence, then why is belief in prayer any more rational than belief that your fairy godmother listens to you?
There is no rational explanation for anything for which we have no explanation, including gravity, uncaused events suggested by quantum theory, etc. I don't think it necessary to know how something works (or even that it necessarily does work) to have a rational opinion about it. I may not really understand quantum theory, nor do I even know that it is true, yet I may very well have a rational opinion that it is true. I might even have a rational opinion that determinism is true, even though there is evidence that quantum theory is true (and determinism is false).
I agree that there are many things which clearly exist yet which don't have any good explanation, like gravity. But the fact remains that those thing are objectively observable, and in many cases, quantifiable and reliable (gravity being a good example of this). No similar thing can be said about any of the many beliefs in gods.
We don't understand anything perfectly, but we have learned to empirically show that some things exist. God is not one of them.
There is no objective means by which to label something as superstition.
Yes there is. Evidence. See my comments on rabbits' feet earlier. If there is no evidence for a thing
where evidence should be easily obtainable, then belief in that thing is more superstitous than one for which there is evidence.
No, just pointed out that what you or I might call "superstition" is opinion, not fact. To say otherwise is to misuse the term.
As I say, everything is on a scale. I try not to say "fact" but rather "supported by evidence" or "unsupported by evidence. What we call superstitions are generally things which are unsupported by evidence. (Are you sick of hearing that word yet?

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It is my opinion that belief in prayer is a superstition. However, my opinion doesn't make it a fact, and if I were to state it as a blanket fact "belief in prayer is irrational" then my statement would be irrational.
I don't think, and I don't think many skeptics here claim that the ineffectiveness of prayer is an undeniable fact. However, in order to keep from having to go through all the linguistic gymnastics that you see me doing here, they may something like "irrational" or "superstitious" to avoid saying "very poorly supported by evidence". Language uses lots of shortcuts. It's easier to learn the shortcuts than to argue semantics every time a word that implies absolute factuality is used.
would be irrational.
And you are certainly entitled to that opinion. As I've held throughout the discussion, I tend to agree with most of your opinions, but believe that you have overstated your case.
Well, poor RF is handicapped by his adherance to an ideology that supports politicians who can barely rub two metaphors together. It isn't his fault that he is obliged to communicate using simple terms, sometimes grunts and hand signals. Yet it should be clear what he was saying, and it wasn't that there are absolute definitions of rational vs. irrational, fact vs. superstition or truth vs. lies. It seems that you've spent a lot of time trying to nail him on this. Maybe that's good for him and it will help him overcome his limitations. I'll wait for the evidence.
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Edited to add:
Apparently RandFan is not as busy as we were led to believe. He's answered some of your posts, and with only minimal grunting.