When all is said and done, you want to write a researchable dissertation. What do I mean?
Very few people read dissertations for their personal pleasure. Rather, dissertations are cracked open because they say something about something that is important to someone else’s academic work. But the same thing that’s important to you, won’t be important to your classmate, even if you’re looking for information within the same dissertation. You are both looking at a large work with many specific points of study, and you’re trying to find the specific element that is important to you.
It’s kind of like looking at the night sky, and each of you taking interest in a different feature. One of you wants to explore a certain star. Another is interested in a planet. Odds are, someone else needs to know more about a galaxy. But you’re all looking at the same sky and there is specific information that each of you will find valuable.
To help narrow down the night sky to their specific topic of interest, astronomers will use a telescope. If you want to help the people searching your work, their telescope is you writing a researchable dissertation.