![tennis racket and net](http://www.genderequalists.com/wp-content/uploads/2016/03/file000996055093-570x350.jpg)
Imagine two tennis players on either side of the court. They have a deep relationship with each other. They’ve been playing their game together for a very long time—a very long time (like, since the Pleistocene). Thwack, thwack, thwack . . . the ball goes back and forth. Thwack, thwack, […]