'Wikipedia factor' probably surpasses all others in terms of
prominence. How else can knowledge be managed without bias?
Actually, the content of Wikipedia tends to be biased towards the most
popular view, which is not nescessarily always the one which is factually
For example, within the demographics of Wikipedia contributers, the set
that consists of those who watch anime is much higher than the set of those
who have studied East-Asian anthropology, and so the articles on Japanese
culture are sometimes misleading.