The theory was simple, as many ideas from the hit HBO show Sex and the City were. To paraphrase Miranda Hobbes (portrayed by Cynthia Nixon), men are like taxicab lights. When they settle down, it's never actually about the person they wind up with—it's all a matter of timing and when their "cab light is on." In a recent article for Verywell Mind, author Ariane Resnick explains, "The taxicab theory (also known as the taxi light theory) is an idea that centers around men and claims that they ...| Upworthy