I read this book, but I never quite understood why it was so well regarded. I think there are better scifi books out there.
Give me a movie version of Lucifer's Hammer by Niven and Pournelle, for example. Now that would be a movie.
In the final seven games of the 2013 season, the Chiefs averaged 34.6 points per game, scored 38 points or more 4 times, and went 2-5. The NFL has ruined the sport.