In Lucy as CPH4 comes in contact with Lucy blood and she begins acquiring increasingly enhanced physical and mental capabilities, such as telepathy, telekinesis, mental time travel, and the ability not to feel pain or other discomforts. It is because her brain starts activating to 100%. As it is also said that when brain reaches 20% of its power remaining 80% starts activating automatically.
My question is as she can control pain, color of her hair, also some non living things like phone, TV etc, Why is it that a 100% activated brain can't control itself? I mean it can be controlled to 20% not more than that.