You seem to be making a statement of fact about the contents of the author's mind. Do you really have a way of knowing for sure whether the author understands reserve currencies (or anything else)?

> and your conclusions are wrong

I don't think the author could be "wrong" about his opinions, so maybe you're talking about his predictions? If so, I don't understand why you're making a statement of fact that his predictions definitely don't agree with what will actually happen, because that would seem to require knowledge of the future.

Is it possible that you can't be sure whether or not the author understands reserve currencies, and that you can't be sure what will happen in the future, and that you and the author just have different opinions about complex topics?