About a month before my dissertation defense, I had already accepted a postdoc offer across the country, put in notice on my apartment, signed a new lease and arranged my cross-country move, but I had an absolutely impossible amount of work left on the list of things my dissertation committee claimed I needed to do before I could graduate, and my experiments just weren't working. It was clear that the work was imposs…
How did they justify (to themselves) how their laundry list of must-do's became can-skip's? Did it make a meaningful difference to the conclusions or strength of conclusions in your thesis?
My dissertation was composed of several papers which were each published in peer-reviewed journals, so the last unfinished bit just had a lot of "future directions" and became a different grad student's paper (e.g. I passed on the end of the project to someone else to finish and publish), as I recall.