Lin Yi opened the Sci-Fi System primarily to purchase ultra-distance communication technology.
In top-tier technological civilizations, interstellar navigation is naturally indispensable. When utilizing curvature drives or even traversing wormholes, the actual speed far exceeds the speed of light.
If communications were still transmitted through electromagnetic waves in a vacuum, a single message would take countless generations to arrive, necessitating the adoption of ultra-distance communication technology.
Chapter 761