Several years ago, I was reading a blog by a well known tech entrepreneur. He was describing his new project, a way for people to post their everyday life acti

Several years ago, I was reading a blog by a well known tech entrepreneur. He was describing his new project, a way for people to post their everyday life actions in 140 characters or less, so they could tell their friends they were going to the store, or what they had for lunch. I thought, what a stupid idea, only the vainest self-absorbed people would share such minute details of their life. His project was called Twitter.