Backbone js and Drupal - now and future (English)

We are well past those times when Javascript was just a scripting language - mostly misunderstood.
Currently, since web application requirements have changed due to the needs of new devices and new massive web services, Javascript has become as one the emerging technologies.
In my talk I will focus on one the existing Javascript libraries Backbone Js its place and role in Drupal (it is now part of the Drupal 8 core). How to turn your Drupal application to something creative and dynamic using just front end and browser capabilities. How to apply well known server side technologies to your javascript web app?
These are just a couple of questions I'll try give provide answers for.