People are happiest at the beginnings and the ends of their lives. Only 2.5% of Americans over 65 live in nursing homes. Older people enjoy better mental health than the young or middle-aged. Dementia rates are falling, fast. So how come so many of us unthinkingly assume that depression, diapers, and dementia lie ahead? That the 20th century’s astonishing leap in life expectancy is a disaster-in-the making? Underlying all the hand-wringing is ageism: discrimination that sidelines and silences older people. So I’ve written a book. I blog about it. I led the team that developed Old School, a clearinghouse of anti-ageism resources. I am the voice of Yo, Is This Ageist? (Go ahead, ask me.) I’ve written a consciousness-raising booklet. And I speak widely. All tools to help catalyze a movement to make discrimination on the basis of age as unacceptable as any other kind.