Nostalgia is a powerful force that permeates every class and demographic. What exactly is its allure? And what is its danger? In this Backstory piece, Larry Potash delves into how nostalgia has infused our present-day lives, and what it means for the larger cultural picture.

Backstory with Larry Potash airs Sunday nights at 11 on WGN-TV and on smart TVs on the free WGN+ app. For more, download the Backstory podcast wherever you get your podcasts, go to WGNtv.com/backstory, or follow Larry Potash on your favorite social media.