Online discussion can evolve toward truth, said Clay Shirky, an adjunct professor in the interactive telecommunications program at New York University and a blogger. One result is a process that can be more reliable than many new media, where corrections are often late and small, if they appear at all.
Dr. Shirky said the key to reasonable discussion was to get beyond flames and the "echo chamber" effect of like-minded people simply reinforcing the opinions of one another and to let the self-correcting mechanisms do their job in a civil way. "You hope the echo chamber effect and the fact-checking effect will balance out into a better and more nuanced set of narratives, and a more rigorously checked set of facts," he said. But in such a sharply contentious world, "The risk is it will largely divide itself into competing narratives where what even constitutes a fact is different in different camps."
(New York Times, 03.01.04)