Earlier quoted context omitted.
Ruby on Rails is still the most productive why to build web apps. Turbolinks prolonged Rails life cycle, as the best web framework, by two or three years. However SPA are the future. Maybe Angular 2 will be good enough to switch. Maybe something build after Angular 2.
Would you please explain why my comment have been down-voted?
I actually happen to agree that Rails is still a supremely productive way to build certain types of web sites and/or applications. An experienced Rails guy, leveraging the vast array of gems out there which can solve many different problems with just a few lines of code, can get an MVP out of the door extremely quickly.