I’m somewhat surprised by how much people got attached to the terms “serial” and “parallel”. It feels unlikely that these terms would have been suggested if I wouldn’t have used them in my original proposal.
I think “Repeat” is a reasonable term in this context. It’s the term I would use when I introduce the concept to someone. I start out with a manually repeated node setup and then make it smaller using a repeat zone.
I think it’s ok to call it a “Repeat Loop” (and “Repeat Loop Zone”) as well. We won’t use the term loop in the menu in the first commit, but maybe we’ll add it later if it really helps. For the parallel loop I currently tend towards the names “For Each”/“For Each Loop”/“For Each Zone”, but we’ll discuss that in more detail when we get there.
Independent of how we call them, we can make both kinds of loops discoverable when searching for “loop”.