Usually a PhD requires you advanced science (usually the smallest possible step forward). This requires a lot of the skills you aquired as an undergrad, but wha

Usually a PhD requires you advanced science (usually the smallest possible step forward). This requires a lot of the skills you aquired as an undergrad, but what can get you through undergrad (beeing good at exams) is almost useless for advancing science. So we dont know if the people trying to do PhD actually have all the skills needed.