Imagine being told you have Alzheimer's disease—and then, two years later, learning that the beta-amyloid plaques once filling your brain are no longer detectable on a PET scan. Until recently, that outcome would have seemed impossible. Thanks to early diagnosis and treatment with Leqembi, it became my reality. This is not a story about a cure. It is a story about what can happen when Alzheimer's is detected early enough for today's disease-modifying treatments to make a difference. It is also a story of gratitude—to the scientists who made this breakthrough possible—and a reminder that every adult over 60 should ask for a cognitive assessment before symptoms become impossible to ignore.