Future Technology- not so far away

The technologies for the future classroom- or not so far future, will have an enormous impact on students, teachers and schools. Not so far future- because many schools have these technologies already! The first thing that comes in mind when looking at these technologies that could be common place is that it will discourage students from traveling or exploring the world. When you can use a hologram to bring anything from the world into your space or use virtual reality to explore- why take the risk or spend the money to physically go? Although from experience, I know why- but to these younger kids who can have everything in their bedrooms- why ever leave? Another negative I see is that holograms can easily make teachers no longer needed, just like self-check outs: if you have one grade 2 teacher in one place teaching about addition, why would you hire multiple, when you could project their image into many classrooms?
However, just like all technologies, there are the positives. For example, no more lost assignments, damaged text books and easier communication about assignments between student and teacher. This video shows the "tracking" features a sort of negative big brother, when really it is a great technique for assessment for learning for the teacher (and the text book creators) to assess how well they are managing curriculum and relaying it to students.