Scott A. Small in conversation with Sue Halpern

Forgetting: The Benefits of Not Remembering

Who wouldn’t want a better memory? Dr. Scott Small has dedicated his career to understanding why memory forsakes us. As director of the Alzheimer’s Disease Research Center at Columbia University, he focuses largely on patients who experience pathological forgetting, and it is in contrast to their suffering that normal forgetting, which we experience every day, appears in sharp relief.

Until recently, most everyone—memory scientists included—believed that forgetting served no purpose. But new research in psychology, neurobiology, medicine, and computer science tells a different story. Forgetting is not a failure of our minds. It’s not even a benign glitch. It is, in fact, good for us—and, alongside memory, it is a required function for our minds to work best.

Forgetting benefits our cognitive and creative abilities, emotional well-being, and even our personal and societal health. As frustrating as a typical lapse can be, it’s precisely what opens up our minds to making better decisions, experiencing joy and relationships, and flourishing artistically.

From studies of bonobos in the wild to visits with the iconic painter Jasper Johns and the renowned decision-making expert Daniel Kahneman, Small looks across disciplines to put new scientific findings into illuminating context while also revealing groundbreaking developments about Alzheimer’s disease. The next time you forget where you left your keys, remember that a little forgetting does a lot of good.

Scott A. Small is a physician specializing in aging and dementia and a professor of neurology and psychiatry at Columbia University, where he is the director of the Alzheimer’s Disease Research Center. He has run a National Institutes of Health–funded laboratory for over twenty years and published over 140 studies on memory function and malfunction, research covered by The New York Times, The New Yorker, and Time. His insight into Alzheimer’s disease recently led to the formation of Retromer Therapeutics, a new biotechnology company which he co-founded.

Sue Halpern writes books and articles and introduces Middlebury College students to digital audio storytelling. She is a Guggenheim Fellow and Rhodes Scholar with a doctorate from Oxford, the author of a book that was made an Emmy-nominated film as well as six others that weren’t, one-half of a therapy dog team, a scholar-in-residence at Middlebury College, and a major supporter of the ice cream industry.

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