Comment by mrbreeze

Of course modern architects need to know and learn about the pyramids. The structure both from a mechanics and static stability perspective are a marvel for building architecture. They are not drywall hanging workers to only care about learning the available drywall types they will use tomorrow for their construction project. If you are a CS PhD student the expectation is that you become a scholar in the discipline. This vocational attitude about 'where will I need this' is perhaps an indication that you don't quite understand what a doctorate really means. Have a chat with your advisor about this, it will be eye opening.