Why are grocery stores so big?

Why are grocery stores so HUGE? It wasn't always that way. Dr. Danger tells us all about the smaller stores where people used to shop. We learn about the history of supermarkets, starting with the first self-service grocery store. Super Eddie makes some funny noises, and tells us what he likes to get at the grocery store.  Get in touch on Instagram and Twitter: @DrDangerScience Get full access to Dr. Danger Science at emilydangremond.substack.com/subscribe