In fact intelligence developed through research in the digital age is really being lost. There are too many programming languages and software tools. Students may get confused about which of them to use and study in their research. On the other hand, supervisors are too busy to give time to their students, which is why they get discouraged and fall into spirals of depression.
Additionally not all information found on the web can be considered authentic and reliable. On the other hand, good books are always written by expert authors and can always be considered great and prospective.