If only everything worked like this! Why are we still sending files around via email? Why aren’t there multiple branching versions of everything? Why do we pretend that there’s any canonical version of anything? (Because we have to make money.) Git acknowledges a long-held, shared, and hard-to-express truth, which is that the world is ever-shifting and nothing is ever finished.
WHY IT MATTERS: every techno geek knows GitHub and appreciates it. This article explains it for the rest of us (you actually ;-)...