Even though I agree with your exasperation, I have to say that this still does not give us a way around the problem of certainty. To say that the order is certain can be expanded into an identical claim with more transparency.My concern with the term 'confidence' is that it admits a chink of doubt regarding objective knowledge. Anyone who says maybe the planets are actually in a different order is either ignorant or a nutcase.
Let's say there are infinite universes that are approximations of our own. Some things in history are different, some things are the same. In each and every one of these infinite universes, humanity believes the planets are in a very specific order. There is almost no room for doubt. Now, out of these infinite universes, what are the chances that just a single universe got the answer wrong? Some incredible series of mistakes and circumstances that have lead people to the wrong answer about the order of the planets.
I can't see myself saying that out of an infinite number of universes, not a single one of them would get the answer wrong. All things being equal, that could very well be our universe. The very concept of certainty doesn't compute for me. It's as though it's invalid because of it's definition.
I dislike the problems the admittance of doubt gives rise to. But I can't simply wish away what I see as true to instead believe in a way that is "more productive".
Perhaps there is no gentle way to educate someone away from false beliefs, if they are emotionally tied to those beliefs. To be emotionally tied to a belief can be contrasted with the alternative; being emotionally tied to a cause or a process. Not irrationally so, as is sometimes suggested by an "emotional tie".As to Orwell, I accept that, in the context of the 1984 and the Party, the requirement to believe what is obviously false is offensive ... but primarily because it is a 'requirement' so there is an element of brainwashing and coercion ... the dehumanizing factor, the stripping of the dignity of the autonomy and dignity of the individual does create an offensive, insulting situation but this goes beyond the case I was considering above.
I believe there are a few processes and axioms that when combined, trump any single belief. Avoid certainty, be confident instead. Be aware of what it feels like when you feed your ego, it's a good feeling and we all desire to feed it more. If something intellectual is feeding your ego, explore that in great detail, because it's the most likely source of error in your worldview. Adhere to the best practices of logic and epistemology, including being aware of your biases. Accept every conclusion only provisionally(avoid certainty).
And if any of these things presents a problem, be willing to restructure or rethink them. The beliefs that these processes lead to are not to be considered "property" of my mind. They are results of a process, so I can be confident that they are true while still not taking ownership of them. There are more processes and axioms I abide by, but it's a lengthy discussion. It would be interesting to talk about emotion versus reason, and the interplay.