In 2017, a group of theoretical physicists created the first time machine and used it to go back in time to kill Adolf Hitler and prevent WWII. However, when they returned to 2017, they learned that a world without Hitler and WWII had somehow created a world without Brian Giles. Upon realizing this, the group of scientists determined that a world without Giles is not worth living in, and the atrocities of WWII are acceptable so that a great man like Brian might live, so they went back in time an allowed Hitler to live, so that the world would not be deprived of seeing Giles play baseball.