We Need Internet Stop Signs

Has our ability to stay present in the real world largely been destroyed by the internet? If so, how has that happened? If we erected internet "stop signs" would we be better off?

While we were saturated with different sources of information, news, and entertainment as recently as the Twentieth Century, those sources had naturally occurring stop cues that allowed us to pause and consider disengaging from the sources. 

For example, when we reached the end of a section of the newspaper, or even the entire newspaper, we stopped, and likely decided to move onto something else.

While reading a book, we came to the end of a chapter, or the completed book, and then we were done, freeing ourselves up for something different in the world.