Just when you think you've heard them all, somebody comes up with a new one.
But it, like all the others before it, quickly fails the test of time for there never has or never will be a theory that successfully can predict the outcome of every game. Otherwise, there would be no sense in playing the games. Look at what happened in the National Football League's wild-card games over the weekend.
The predominant theory was that the warm-weather teams wouldn't be able to handle the conditions in Green Bay, Philadelphia and Cincinnati.
You know what happened. The San Francisco 49ers (whose hometown isn't really all that warm) won Ice Bowl II on the frozen tundra of Lambeau Field, eliminating Aaron Rodgers and the Packers. Ditto for New Orleans, which ended Philadelphia's magical run under quarterback Nick Foles.
I also don't know how many times I heard during the week that Philadelphia was the loudest stadium, and the Saints thus would have a tough time hearing the quarterback's signals or calling audibles at the line of scrimmage. So much for that theory, which held as much water as a team that plays indoors wouldn't be able to handle the frigid weather conditions.
While the weather in Cincinnati was somewhat tolerable, it had no effect on the visiting San Diego Chargers, who stunned the hometown Bengals in what might well be the last game for Marvin Lewis as the team's head coach. Cincinnati hadn't lost a home game all season and was a touchdown favorite to beat San Diego. But the Bengals got outscored 20-0 in the second half, once again failing to win a playoff game for the first time since 1990.
The most entertaining game of the weekend was the one that took place indoors. It saw the Indianapolis Colts rally to knock off the Kansas City Chiefs, 45-44. The Colts now will travel to New England this Sunday, where we are bound to hear the resurrection of the theory that the team that plays in a dome can't handle the cold conditions.
I did hear one remarkable theory this weekend that has picked the Super Bowl winner before the season started each of the past four seasons, and remains alive this weekend.
In 2009, the Philadelphia Eagles' first home game was against the New Orleans Saints, who went on to win the Super Bowl.
In 2010, the Eagles' first home game was against the Green Bay Packers, who went on to win the Super Bowl.
In 2011, Philly's home opener was against the New York Giants, who went on to win the Super Bowl.
Last year, the Eagles' home opener was against the Baltimore Ravens, who went on to win the Super Bowl.
This year, the Eagles' home opener was against the San Diego Chargers.
If the Chargers win the Super Bowl, there will be a lot of people waiting to see who the Eagles open at home with next season.
Contact Dave Poe at email@example.com