Esoteric
Rui considered the matter deeply. Frankly, this was the only hypothetical way he had come up with at the moment. The task before him was so difficult that he couldn't even begin to come up with a way that could allow him to sense the curvature of space. Even if he could, it didn't necessarily mean that he could comprehend it.
He had taken the General Theory of Relativity as an elective in his bachelor's degree and had been fascinated by the subject. He had never had to the entirety of all topics that could fall under the umbrella of the General Theory of Relativity, but he had learned the core theory itself, and based on what he understood of it, it could hypothetically serve as a way of perceiving the world.