It's easy enough to find out how long copyrights last, but much harder to decide how long they should last—but that didn't stop Cambridge University PhD candidate Rufus Pollock from using economics formulas to answer the question. In a newly-released paper, Pollock pegs the "optimal level for copyright" at only 14 years.

A PHONE CALL FOR MY MOM WAS CUT OUT BECAUSE IT WAS UNNECESSARY. My brother seems to be a very selfish, megalomaniacal individual. You can't appease him, you can't reason with him. And you'd best not try to correct him, because if you do, he'll CHEW. YOUR. ASS. OUT. He says he's disciplining me, but he fails to realize what a major hypocrite he is. Of course, he'll try to sugar-coat things by admitting he has faults, but to me, it seems like he's trying to make excuses. Here I am, trying to give a heartfelt explanation and trying desperately to explain myself. He blew up on me just because my defense mechanism went up when he asked me very sternly if I was going to behave at the mall. That was one month ago, yet he still dwells on it. But, it's my fault that he's bitter. I messed up his childhood by drawing all the attention to myself. That and we have spent over 20 years having arguments and violent confrontations, so I feel very horrible about that. That is my opinion. I will leave this up to you to judge.