From the horse.com network, this video discusses the idea of reading forehead swirls. An interesting concept I had never heard of and supposedly this hair has a connection with behavior in the equine animal.
This video provides a brief overview of the history and a demonstration for reading your own horses swirls.
I found the rest of the swirl series with Chris Irwin, this is part one of a 10 part series.
What do you think, a viable theory? What does your horses swirl say about them?