Harness the Mental, Creative, and Emotional Benefits of Regular Writing
Since writing also makes you take those ideas out of your head and put them into real words, it also challenges you to think about how you can communicate those ideas to others in a way that makes sense. You'll have to turn your abstract ideas into something that's concrete and understandable by others, and it'll challenge you to grow and develop the language and communications skills required to get those ideas across. Even if you deal in facts and figures, creative writing can help you learn to communicate complex ideas more effectively.