I am currently reading this paper. http://arxiv.org/pdf/1401.2670v1.pdf Because I am interested in knot theory and here are my impressions. Why are these papers so difficult to read? It almost seems as if it really is a completely foreign language as if its not already a foreign language to begin with. I can read a text book just fine, but this is way harder. I can hardly even understand any of it to be honest and I am wanting to purse a Phd in math or physics and am serious about it. Where are the diagrams and pictures? How do I even begin to know what's going on in this paper. It feels as if the person who wrote it is so smart that nobody else can even understand what they wrote about. I know that you have to be at an expert level on the subject to read these papers, but good grief. Anybody have any advice on how to get to this level of being able to read and understand other people's papers? Thanks.