social network systems like Facebook where thru hook up sensors your mind actually projects and receives simple feedback.  Most online interaction though is still thru analog interface. By around 2060 to 2070 - Most younger citizens (under 50) in first world nations spend more than 80% of their waking lives online.  Why ?  Because as mentioned above, real life is a slow time bore.  You can meet and exchange ideas many times faster in virtual space.  Entire relationships and marriages can play out in one day, rather than the slow time of years.  Free time allows access to tailored virtual worlds where real feedback is sent to your neocortex (in limited fashion).  Why live life in real time where someone is a single unhappy taxi driver, when you can live in a simulation where you are a sex god and master of planets or star systems. By 2070 - You dont need to take a vacation to Paris or the Bahamas any more.  You send out part of your consciousness online to view Paris from multiple webcams embedded around the city and in places like Notre Dame or the Eiffel Tower.  Your vacation to Paris takes only seconds to minutes and you visit and learn far more about the city than you ever could on a real trip.  This also allows you to reset the mathematical attractors of your neural network, enabling you to feel better rested than if you had actually physically visited Paris. By perhaps 2080 - With