Wikipedia, the free online encyclopedia, currently serves up the following: Five billion pages a month. More than 120 languages. In excess of one million English-language articles. And a single nagging epistemological question: Can an article be judged as credible without knowing its author?
Wikipedia says yes, but I am unconvinced.
Dispensing with experts, the Wikipedians invite anyone to pitch in, writing an article or editing someone else's. No expertise is required, nor even a name. Sound inviting? You can start immediately. The system rests upon the belief that a collectivity of unknown but enthusiastic individuals, by dint of sheer mass rather than possession of conventional credentials, can serve in the supervisory role of editor. Anyone with an interest in a topic can root out inaccuracies and add new material.
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At first glance, this sounds straightforward. But disagreements arise all the time about what is a problematic passage or an encyclopedia-worthy topic, or even whether a putative correction improves or detracts from the original version.
The egalitarian nature of a system that accords equal votes to everyone in the "community"--middle-school student and Nobel laureate alike--has difficulty resolving intellectual disagreements.
Wikipedia's reputation and internal editorial process would benefit by having a single authority vouch for the quality of a given article. In the jargon of library and information science, lay readers rely upon "secondary epistemic criteria," clues to the credibility of information when they do not have the expertise to judge the content.
Once upon a time, Encyclopaedia Britannica recruited Einstein, Freud, Curie, Mencken and even Houdini as contributors. The names helped the encyclopedia bolster its credibility. Wikipedia, by contrast, provides almost no clues for the typical article by which reliability can be appraised. A list of edits provides only screen names or, in the case of the anonymous editors, numerical Internet Protocol addresses. Wasn't yesterday's practice of attaching "Albert Einstein" to an article on "Space-Time" a bit more helpful than today's "71.240.205.101"?
What does Wikipedia's system offer in place of an expert authority willing to place his or her professional reputation on the line with a signature attached to an article?
When I asked Jimmy Wales, the founder of Wikipedia, last week, he discounted the importance of individual contributors to Britannica. "When people trust an article in Britannica," he said, "it's not who wrote it, it's the process." There, a few editors review a piece and then editing ceases. By contrast, Wikipedia is built with unending scrutiny and ceaseless editing.
He predicts that in the future, it will be Britannica's process that will seem strange: "People will say, 'This was written by one person? Then looked at by only two or three other people? How can I trust that process?' "
The Wikipedian hive is capable of impressive feats. The English-language collection recently added its millionth article, for example. It was about the Jordanhill railway station, in Glasgow. The original version, a few paragraphs, appeared to say all that a lay reader would ever wish to know about it. But the hive descended and in a week, more than 640 edits were logged.
If every topic could be addressed like this, without recourse to specialized learning--and without the heated disputes called flame wars--the anonymous hive could be trusted to produce work of high quality. But the Jordanhill station is an exception.
Biographical entries, for example, are often accompanied by controversy. Several recent events have shown how anyone can tamper with someone else's entry. Congressional staff members have been unmasked burnishing articles about their employers and vandalizing those of political rivals. (Sample addition: "He likes to beat his wife and children.")
Wales himself ignored the encyclopedia's guidelines about "Dealing With Articles About Yourself" and altered his own Wikipedia biography; when other editors undid them, he reapplied his changes. The incidents, even if few in number, do not help Wikipedia establish the legitimacy of a process that is reluctant to say no to anyone.
It should be noted that Wales is a full-time volunteer, and that neither he nor the thousands of fellow volunteer editors has a pecuniary interest in this nonprofit project. He also deserves accolades for keeping Wikipedia operating without the intrusion of advertising, at least so far.
Most winningly, he has overseen a system that is gleefully candid in its public self-examination. If you're seeking a well-organized list of criticisms of Wikipedia, you won't
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