For a brief irrational moment, she wished she could walk away from him. Then she wished, more rationally, that she could love him without needing him. Need gave him power without his trying; need was the choicelessness she often felt around him.
— Half of a Yellow Sun, Chimamanda Ngozi Adichie
In Greek, “nostalgia” literally means “the pain from an old wound”. It’s a twinge in your heart, far more powerful than memory alone. This device isn’t a spaceship, it’s a time machine. It goes backwards and forwards, it takes us to a place where we ache to go again.