Sojourner01 said:
What wikipedia tends to amount to in science articles is peer-review. As long as the population of experts is high enough in a particular area, every change is intensely scrutinised by both experts and students. The main problem it has is not enough of both in many areas. Most of the articles are technically accurate, but very, very confusing. The main thing they need is reworking to be more accessible.
I'm going to agree with Zz here, that wiki is not at all like peer review. In peer review, you have an expert in a very specific field writing an article, it is then reviewed by his/her peers
in that field, i.e., also with very specific knowledge to catch errors, then an editor goes through those reviews to further check that they are consistent with the goals of the journal, and if the reviews are too different, can choose to send it to more experts for review to see if there is consensus, then it is sent back to the original writer to correct those errors, if they are correctable. If the errors are too egregious, as is the case in some wiki articles, it is simply rejected and nobody else ever sees it.
In wikipedia, the errors are visible to everyone, even those with no expertise, until corrected.
moose said:
You can view the edit history and retrieve any information you had on there previously.
And how many times are you going to do this before you get sick and tired of it? If you work really hard to make something comprehensible to the general public and still retain accuracy, and people who know less than you can keep coming in and meddling and making it worse again, are you really going to go back day after day after day just to keep reverting it back to your original text? I sure wouldn't bother. If I'm going to put that much effort into writing something clear and accurate for a novice, I'll write a textbook chapter.
And, if that's the type of information you want, that's where it can be found...in textbooks. For higher level information, there are edited, peer-reviewed books containing collections of related review articles as well that are good starting places to get an overview of a field. It takes months to years to write those, going back and forth between authors, editors, and peer-reviewers, but when it's done, it's printed in permanent form. Why would you do all that work only to have someone with an overinflated ego think they can do better than the experts and start changing things? Or worse, to keep having them insert their two cents in while you're trying to make your own revisions?
I think if you're looking for some tidbit of trivia, wikipedia is as good a place as any to start, but if you're looking to learn something serious, get a textbook or take a class.