> but branches can be moved around with less ceremony than tags

`git tag -f` to move a tag.

Personally, I just do `git show` when I'm feeling cautious, but I can generally just scroll up to find the last `git commit` I did with the hash in the output. `git reflog` should also have record of it, so everything else is kind of extra.

Good point, that's no more ceremony than moving a branch. I guess I've just gotten "branches are movable tags" so deep into my hindbrain that I absorbed "tags are hard to move". But that's not actually true, and for what I'm doing (save this point in history for a while) a tag makes slightly more sense, semantically, than a branch.