Yan Zu asked very seriously, so Wen Wen also thought carefully.
In many science fiction works, there are various answers to this.
To allow a civilization to sustain itself indefinitely, interstellar travel is fundamental.
For example, the development based on string theory, using cosmic strings constructed from artificial wormholes to achieve hyperspace jump technology.
Or having people hibernate on spaceships to travel to other planets through long periods of time.
Another method involves flattening the space behind the spaceship, reducing its curvature, so that the spaceship is pulled by the space with greater curvature in front, thereby achieving near-light speed flight.
But ultimately, these are currently just scientific conjectures, even fantasies.
So Wen Wen thought for a long time, but could only tell Yan Zu, "At this stage, we cannot explore the stars, but with the development of science and technology, we will be able to do so one day."
