http://waitbutwhy.com/2015/01/artifi...olution-1.html
http://waitbutwhy.com/2015/01/artifi...olution-2.html
I'm an avid reader of Wait But Why and this is honestly Tim's (the creator of the blog) best post yet. It takes a while to read but is SO relevant and interesting. I suggest you read the whole thing.
The longform explores the feasibility of superintelligence, and a plethora of its potential effects. That description is an oversimplification, but it won't matter when you're engrossed in the article.