I will also recycle a comment from there:
> There's a certain kind of sci-fi premise of "what if every intelligent species has something they're particularly good at."
> Naturally, most stories revolve around something impressive (or damning) for humanity like "war" or "kindness", but in the past I've wondered what kind of story one could make if the answer was "knots".
> Perhaps that's a question for mathematicians, and whether some facility for topological knot-thinking might be very handy in some kind of physics or engineering.