Bayesian probability theory has nothing to do with some parapsychological nonsense like if you believe something then it is true.

If you disagree, then why not edit the wikipedia article on this subject?

You are the one who is changing the subject by claiming that Bayesian probability theory is what you say it is.

''An infinite universe implies nothing other than the fact that there is no boundary.''


False, i.e. the ''nothing other than'' in your sentence.

In the general case, an infinite universe implies an infinite number of observers. This is similar to saying that if you know that there are a trillion stars in a galaxy then that's all you know. But you know more than that, because you know about how the universe works. So, you also know that there will be a lot of interstellar dust there, even though you haven't seen it yet there.