Can I write this article?

One question every writer should ask himself prior to writing any article is the following: am I able to write this article? You will save a lot of time if you realize fast enough that you are not able to write an article because you lack knowledge about the subject. Nothing is worse than realizing that you are unable to write on the subject after already writing the majority of the article. Not being able to complete an article is one of the worst things that can happen to a writer. It is not such a good thing to happen because it is not good to start something and not be able to finish it.