What factors determine whether an idea is considered common knowledge in academic writing?

An idea is considered common knowledge primarily based on its familiarity to the target audience. Common knowledge refers to information that is widely accepted and can be found in numerous sources, making it unnecessary for authors to provide citations when referencing such information. What is deemed familiar can vary based on the audience’s expertise, background, and the context in which the information is presented. For instance, a scientific concept may be common knowledge among specialists in a specific field but not for those outside it.

This understanding emphasizes the importance of knowing your audience and tailoring your writing accordingly. If an idea is something your readers are likely to know well, you can assume they will recognize it without needing additional sources for support.