We can see lvl 1-50 is a steady climb in XP ranging from 1200 for lvl 1 to 20k for lvl 50. The XP jump from 50 to 51 is 600K. We can assume according to this data combined with the NPCs 3rd listed lvl that hell is going to be farmed/ran for quite a while before inferno difficulty is able to be reached and successfully tackled. What do you guys think? Seems like its gonna be quite a grind to 60.