As Jamie1 brought up in another thread, workflowy just launched the feature, if you want to try it out in action. https://workflowy.com/feature/mirrors/ . It was being discussed on their forums too.
I am not going to jump ship for it, to be clear. I love dynalist’s features that workflowy doesn’t have.
It does pique my curiosity, since any node that’s an internal link jump, can instead be a mirror you drill into, in place. It transforms the finite tree into an infinitely looped fractal tree, just like the old game nested. If someone was bored, they could completely remake that game in workflowy mirror bullets. I recall in other outliners the concept is called clone nodes. The workflowy forum was referring to it as transclusion, for a while too. I am not sold on it being useful, it seems to just be a UI paradigm of how the travel between internal links renders. I can’t imagine my workflow or productivity getting a boost by it. It is certainly neat though, and I’d give it a try if it ever came to dynalist. I haven’t really found a use for backlinks either yet, though. It takes me a while to wrap my head around anything new.