Agnes Arnold-Forster, a medical historian and author of 'Nostalgia: A History of a Dangerous Emotion,' joins nostalgia researcher Krystine Batcho, who created the Nostalgia Inventory, and Tobias Becker from the Free University of Berlin, author of 'Yesterday.' They explore nostalgia’s evolution from a malady to a source of comfort, the role of scents in memory, and its implications in politics. The conversation also touches on how the digital age enhances our longing for the past, revealing nostalgia's complex emotional landscape.