Glowy, Gauzy Diagrams Are the Self-help Books of the Instagram Age

A deceptively simple question: How are you feeling right now? It’s simple because you’re probably sentient and awake; deceptive because the web of human emotion is always undulating, twitching and warping in response to events—real, perceived, micro, and otherwise—in real time.    In 1980, to help people answer that question, the psychologist Robert Plutchik published a paper about the eight core...