In an interview this week, Baltimore Ravens safety Bernard Pollard made a very provocative statement. Pollard, who is known for very hard hits, stated that, in his opinion, the NFL would cease to exist within 30 years. I have to say that I have seen plenty of coverage of this story that failed to mention the part of his quote where he stated that this was just his opinion. Still, the reason he said this is more important. He basically said that there are too many rules being changed that have taken away the physicality of the sport and that fans would eventually get tired of watching it. So why…