The Curtain Theory was a Level 9 technology that brought about a huge interstellar engineering construction method.
It could be as small as hiding a planet or as large as hiding an entire galaxy. These were all theoretically achievable effects of this technology.
However, depending on the size of the hidden object, the resources required for this project would be extremely terrifying.
If he wanted to hide the Milky Way, he might not be able to do so even if he dismantled the entire Milky Way.
The essence of its technology was to distort space and time on a large scale, causing internal things to be in a special space-time state that could not be observed.
However, this was only one of the links. There was another very important part of the curtain, which was to create an identical substitute and place it in the original space and time.
It was as if this was the only way to perfect the curtain.
