Sure, if the thing to be judged has a limited number of inputs and factors and outcomes...which is something that does not apply to the content of the Web, of course.

But in other cases where the answer is basically, "yes" or "no"...if an algorithm chooses the right answer, doesn't that count as truth? Take for example, the Apgar score, which consists of giving a newborn a score of 0 to 2 for five categories: complexion, pulse rate, reflex, muscle tone, and breathing. http://en.wikipedia.org/wiki/Apgar_score

A baby that scores 8 is considered to be doing well. A baby with just 5 merits additional examination.

This simple numerical score is credited with revolutionizing obstetric medicine and is still used today, even though it was first published in 1953. http://www.newyorker.com/archive/2006/10/09/061009fa_fact?cu...

I guess it's debatable whether this counts as an "algorithm"...but it involves the mechanical evaluation of a "score", with set guidelines for when such score is dangerously low. The fact that the scoring is done through human judgment is peripheral to the matter...it's not hard to imagine a machine being able to perform the same test (perhaps more accurately) were it cost-practical to build such a machine.

One more interesting note: The Apgar score was not developed by an expert. It was developed by a female doctor who had never delivered a baby (nor had a baby) herself, but felt that doctors were giving up too quickly on sick babies.