Improbable is a 2005 science fiction thriller novel by Adam Fawer, about a gambler who gains the power to predict the future.
[1] Improbable is the story of a gifted young man named David Caine, who has been troubled by debilitating epileptic seizures to the extent that his medical condition has thrown his life completely off track.
During the course of the novel, Caine undergoes an experimental medical treatment in an attempt to set his life straight.
After the procedure, he discovers that he is able to make predictions using his enhanced calculative skills, and change the future based on his discoveries.
However, shadowy forces want to use his power for their own ends, and he faces a desperate battle for survival.