Interstellar Hop: Sh
In short: a brilliant idea worth studying, but not something we should bet the first starship on. For now, direct flights with near-term fusion remain the more pragmatic (though still daunting) path.
3/10 Rating for strategic value (long-term colonization): 8/10 – if waypoints exist, this is the only sustainable model for interstellar infrastructure. Interstellar Hop Sh

This is helpful! Over the summer I will be working on a novel, and I already know there will be days where my creativity will be at a low, so I'll keep these techniques in mind for when that time comes. The idea of all fiction as metaphors is something I never thought of but rings true. I'll have to do more research into that aspect of metaphor! Also, what work does Eric and Marshall McLuhan talk specifically about metaphor? I'm curious...
I just read Byung-Chul Han's latest, "The Crisis of Narration." Definitely worth a look if you're interested in the subject, and a great intro to his work if you've not yet read him.