Comment by akjssdk

Why is no one considering that this PhD student is wrong and that his supervisor does in fact know what they are doing? Starting in a new field is hard, and it takes years to get a broad view of the field in order to understand what directions to take. As a PhD student you are not expected to be able to do this: this is why you have a supervisor who has enough experience. Maybe the supervisor does have a clear vision as to where to take the research, and the student does not yet see this?