[steveklabnik]

Thanks for the feedback! I think these terms are used a bit loosely, even though I try to be precise about it.

Your mental model sounds decent. I think there’s a few ways to describe things. I like to think of changes as a stable ID for something I want to accomplish, and a commit as the intermediate steps that make up a change. You can kind of think of a change as a branch… but I think that’s stretching it.

[stavros]

OK, going through the tutorial again, I think the difference between commits and changes are definitely the thing to focus on. Before your comments, I felt like I was building on a small foundation, because I didn't understand how commits and changes relate, and didn't have a good mental model of them.

After your comments, the entire tutorial is more solid, but still I feel like I have gaps. My feedback would be to really focus on commits vs changes and define their relationships, what affects them, etc before you go into anything else.

[stavros]

Ahh, this really helps. I think you should definitely mention that a change consists of commits (unless it already is and I missed it). This helps because the two questions I had before were "if I change some text, will the change ID change too?" and "does a commit end a change?".

Clarifying early on what exactly a change ID is, when it changes, and what the relationship between changes and commits is would really help, I think.