Why are parentheses often used in writing?

Parentheses serve a crucial role in writing by allowing writers to include supplementary information that enhances the reader's understanding without breaking the overall flow of the main text. This additional information can clarify a point, provide examples, or offer explanations that are not central to the main argument but are still relevant.

Using parentheses helps to keep the main narrative intact while giving readers the option to engage with extra context if they choose to. This creates a smoother reading experience, as it avoids cluttering the primary sentences with excessive details that might distract from the main message. Thus, the use of parentheses aligns perfectly with the goal of improving clarity and coherence in writing.