Explore value classes in Scala with Lukas Rytz in this 36-minute conference talk. Delve into the main idea behind value classes, their representation implications, and various use cases. Learn about defining value classes, type hierarchy, extending traits, and boxing. Understand performance models, overloading restrictions, and feature interactions in the compiler. Discover how value classes interact with Java interfaces and consider future possibilities like multiple fields. Gain insights into extension methods, trait method calls, and the manifestation of value classes at bridges.