Watch this video before you finalize your research topic. Are you an early stage researcher? Do you know how to select research topic? Do you need help with choosing research topic?
This video walks you through the thought process which you can use as a decision making framework to turn the odds in your favor. There is no golden rule thumb to write the perfect PhD research proposal but this framework will help you minimize the chances of opting for something that you are going to regret at a later stage.