Game Theory is how I am able to train the goalies I work with, to stay ahead of new goal scoring trends in hockey.
If A, then B. If B, then C. If C, then D.
I remember years ago, we were preparing our athletes to stop this one play called "the Michigan". It's when players behind the net scoop the puck on their stick, then wrap it around the net, above the goalie's shoulders.
People used to make fun of us, thinking we were wasting our time, preparing the goalies to stop a situation they never face in a game. Now, it's something that occurs almost weekly in very hockey league.
I think that especially now, with information moving so much faster than before, having a basic understanding of Game Theory is crucial, if anyone wants to compete in their own market place.
If new strategies catch you by surprise, you'll always be chasing and reacting, never having time to settle down and think things through.
If you can think a few moves ahead, then you can be prepared for when the new strategies are exponentially deployed.