I don’t know when I first heard the term “toxic positivity” but it was sometime after my father was diagnosed with advancing dementia and before my own initial bout with breast cancer. The concept, though, is relatively simple. Toxic positivity is a kind of cultural obsession with the necessity of positive thinking or the belief that people should always put a positive spin on every experience, even the profoundly tragic. It’s a kind of silver lining run amok: wherein instead of acknowledging the good that can sometimes emerge from the bad, you gild the entire cloud in a precious, glittery veneer of happy thoughts. And American culture is utterly obsessed with it.