In the midst of a full-blown agoraphobic episode, the unnamed narrator of Tanja Maljartschuk’s novel “Forgottenness,” becomes engrossed in reading old newspapers. Asked by her increasingly concerned partner what she’s looking for, she simply tells him: “I want to understand what time is.” “Time consumes everything living by the ton, like a gigantic blue whale consumes microscopic plankton, milling and chewing it into a homogenous mass, so that one life disappears without a trace, giving another, the next life, a chance,” she confides in the reader. “Yet it wasn’t the disappearance that grieved…