Most of your Facebook friends couldn't care less about you
 

Even if you have thousands of Facebook friends, you can probably only count on a handful in a pinch, according to a new study. The author, anthropologist Robin Dunbar, should know. He's the guy who came up with Dunbar's number, which shows that in th...

http://www.engadget.com/2016/01/25/f...-dunbar-study/