In this video Eli Periser is informing all of us about how social and news websites like Google, or Facebook, or Yahoo News use algorithmic values and calculations to self determine what does the person looking at the screen actually want to see. They would cancel out any adds, or web links, or notifications which they presume is least opened by the user, hence just an unnecessary piece in their research and doesn’t hold any value when in fact that very page or link might carry a significant purpose to the user. It might just be that the user has not been able to use that piece of information within the time period the website thought that person doesn’t really want the page at all.
Eli Periser also talks about how these actions of the websites are restricting people all around the world from the knowledge they should have about the world. Internet was invented for the social communication, or connectivity of the wold. Now, however, that very reason is at risk as internet now is only giving us the information or a source that we want but not what we need. This would just end up making people around the world just anonymous about what’s happening around them.