It can be biased. Not every article is, but some certainly are. If you speak other languages besides English, pick a couple of historical events, political grou

It can be biased. Not every article is, but some certainly are. If you speak other languages besides English, pick a couple of historical events, political groups, and in general contentious topics and compare their article in English and other languages. You will be surprised how different they portray the same event and how the choice of facts to present and how to present them totally changes the narrative. You may say the same is true of any source. But unlike most sources, where the writer or publisher of the piece is known and their biases researchable, you won't know who wrote a particular article and what their allegiances are. Besides, most people use Wikipedia as their one and only source of information, so they do not get exposed to different viewpoints and interpretations. It is considered fine with Wikipedia, as it is an encyclopedia and is supposed to be objective. With individual sources, you know you need to read a couple before forming an opinion. With Wikipedia, you may not do the same.