well... It's all to do with the left side of the brain being superior to the right. Billion's of year's ago (before trials was spawned) eskimo's and elf's decided they would tamper with the human brain to make the left side far more advanced, the poor eskimo's effort's were useless and the elf's sent them to live in Iceland, when the eskimo were gone the elf's carried on with the hard work and finally made the left side better. Only a few selected people tern pro with the right foot forward's because of the chemical in print in the brain. The mischievous little elf like people were sent to the moon to live with the moon people because of their carelessness but sadly were killed off because of the lack of oxygen and the human brain was altered for eternity.