This video covers the internal of the interface types in Go language. 0:00 Basics of Interfaces 0:54 Changes in interfaces due to Generics 1:52 Interface elements 3:50 Identical interfaces 4:36 Type description structures 6:04 Memory layout of interfaces 11:17 Empty interface - runtime type representation 11:43 Type assertion 12:12 Type switch 12:41 why nil error is not nil 13:31 Benchmarking overhead of interface method call 17:23 Devirtualization References: