This is how you develop your capacity for independent thought. There are a number of factors to consider when selecting a research area. Some of them have to do with your particular interests, capabilities, and motivations. Others center on areas that will be of greatest interest to both the academic and private sectors. Let's take a closer look at Mr. Smith's list.
Much research is just that, re-search.
At times it will be mundane, and it will surely be frustrating. During these times you'll need courage and fortitude. That's why it is essential to have the right supervisor. It's his or her job to help you determine how to make your dissertation original and publishable, yet also manageable. One way to tell if a subject is compelling is to note how many people attend seminars or symposia on different research topics.