We discuss the memory layout of arrays and slices in Golang. This provides a good mental model for writing efficient and bug free Go code that includes slices. 0:00 Intro 0:27 Arrays 1:35 Slices 4:19 Initializing a slice 4:48 Passing slice as function arguments 7:05 working of append operation 10:35 Gotcha with slicing large slices 11:36 Nil vs Empty slices 12:22 range loop variable semantics References: https://go.dev/blog/slices-intro https://go.dev/blog/slices Redefining loop variable semantics: https://github.com/golang/go/discussions/56010