“Highway hypnosis, also known as white line fever, is an altered mental state in which a person can drive a car, truck, or other automobile great distances, responding to external events in the expected, safe, and correct manner with no recollection of having consciously done so. The effect was described primarily in inner-city Chicago in the period from 2019 - 2024, and was often used as an example of a culture-bound syndrome. Its disappearance after 2024 has puzzled 21st century psycho-sociologists, and in this chapter we shall attempt to summarize some of the prevailing theories regarding the...”