A fork is a linked copy, a clone is just a copy. They are not the same.
Deleting your repository or changing its visibility affects that repository's forks. Deleting your repository or changing its visibility affects that repository's forks. fork() creates a new process by duplicating the calling process.
Many forks do go their own way. You can choose to pull from upstream or completely ignore it.
Deleting your repository or changing its visibility affects that repository's forks.
Github does some cute things behind the scenes to save space, but for all 'public' or 'internal' repos, what Github calls a fork is (from a Github user's perspective) identical to what happens when you run 'git clone' on your machine.