While I appreciate the positive vision you describe, I think it is also important to acknowledge that just because there is a page of information about a subjec

While I appreciate the positive vision you describe, I think it is also important to acknowledge that just because there is a page of information about a subject on Wikipedia, that is absolutely no guarantee that the information provided is correct or complete. Wikipedia content is not necessarily reviewed by experts, and even when it is, there is no guarantee that a real-life expert will be given credit as such by the Wikipedia community. For example, there are technical subjects where a very long page has been maintained and evolved for years despite presenting a fundamental misunderstanding of the subject and despite various comments in the corresponding talk page by people who apparently did understand the problem. Trendy topics on technology seem to be particularly bad for this, as you can easily get a page dominated by young, inexperienced contributors who only learned a buzzword in a particular narrow context, with no idea of the history, original motivation, or more general application of the underlying idea.