Paul Ford explains version control in a way that is clear and straightforward, while also being wistful and poetic.
I had idle fantasies about what the world of technology would look like if, instead of files, we were all sharing repositories and managing our lives in git: book projects, code projects, side projects, article drafts, everything. It’s just so damned … safe. I come home, work on something, push the changes back to the master repository, and download it when I get to work. If I needed to collaborate with other people, nothing would need to change. I’d just give them access to my repositories (repos, for short). I imagined myself handing git repos to my kids. “These are yours now. Iteratively add features to them, as I taught you.”