Smallest "Hello, World!\n" program

Even one of the simplest programs (a "Hello, World!\n" program) is still much larger than it strictly needs to be. In this video, I demonstrate how to reduce executable file size starting in C, then dropping down to assembly, then even raw machine code, and more. 00:00 Introduction 01:00 Definitions and constraints 02:14 C 06:20 Assembly 13:05 ELF binary 22:36 Looser constraints 33:41 Outro