Drupal 8 offers several new features and improvements including built-in views, configuration management using YAML files, improved accessibility and mobile friendliness, and a transition to Symfony and Twig. The learning curve for Drupal 8 may involve stages of shock, denial, anger and depression before reaching acceptance. Developers are encouraged to get involved with the ongoing development through the core mentoring program to learn Drupal 8 early.
6. Note:
Drupal8 is still actively being developed.
There is a chance that whatever this guy
shows you will not be in the final product.
That or he was flat out wrong.
35. How can you get involved?
Drupal 8 already has 1700+ contributors! Our
mentors love to help new people get involved, and
there is always something that you can help with.
Learn Drupal 8 early by getting involved through
core contribution mentoring.
https://drupal.org/core-mentoring