I always believed that side-by-side diff view is a transclusion interface.

Also, permalinks can work on top of git quite nicely https://replicated.live/blog/link

If git's pack index gets refactored slightly, it can do anything from trigram-indexed search to metadata indexing to hyperlinking both ways across repos. That is actually useful, I use it: https://replicated.live/blog/wiki

CRDT merges are a very incremental and useful upgrade for git https://replicated.live/blog/meta

The funny part is, git developers likely did not read such wacky books. Also, linux kernel is one of very few projects that have no dependencies at all. The rest adopted what linux developers use.

We don't get what we want or what we need. Instead, we move erratically in very small, easy, local steps.