The closing arguments of this documentary, where the author brings the timeframe to the present, that talk about the reinforcement of content across groups in social networks, are incredibly poignant and relevant to the 'fake news' effect that currently sits at the forefront of the media's attention.

It's scary how, as social networks' power gains more influence and accuracy, the lens through which we view content on the web will be narrowed and focussed. So much so, that coupled with the above 'fake news', is responsible for members of the public 'only seeing what they would want to see' - and not questioning the credibility of the source material.

We, as technologists, must work hard to strive towards an objective web. I think that fake news is just the beginning of a veil of blurriness that will flow over internet content.

It therefore strikes me as surprising that Facebook has started a 'flagging' system for fake content[0] — when it relies on the above positive feedback loops of users with shared interests.

[0] - http://www.bbc.co.uk/newsbeat/article/38827101/how-facebook-...