The Third Pass: Virtually re-implement the paper

Duration: Can take up to 4-5 hours if you're a beginner(you should carefully consider if this step is worth your time). 

Activity: 

• Read the paper in its entirety and question every detail.
• Make the same assumptions as the authors and re-create the work from scratch. You can virtually re-implement the steps in your head or use any tools(like flowcharts) that you may deem fit.

At the end of this pass you should be an expert and know the paper’s strong and weak points. You can reconstruct the structure and explain to someone in simple language what the paper is all about.