Yes. A character falls to their death off a "cliff" that would be imperceptible to humans. Another striking feature from the novels, not mentioned in the artic

Yes. A character falls to their death off a "cliff" that would be imperceptible to humans. Another striking feature from the novels, not mentioned in the article but hinted at in the illustration, is the extremely strong magnetic field, creating an easy direction of travel (parallel to the field) and a hard direction (orthogonal to the field). The relative difference is so extreme that most cheela spend their lives just going back and forth, only running into other tribes when they're forced by circumstances to travel in the hard direction.