Chapter 714: Chapter 690: Deja Vu_2

"I always thought that cosmic civilizations should treat other races with the simplest means to achieve the most direct purposes. The higher the level of civilization development, the more this is the case, unless they just want to play with us."

"Instead of worrying about how to defend against this black stone, we should be more concerned about the signal on Mars. It may not have the same origin as 'Karst,' nor does it mean that it's harmless. Even if the original owners of it are harmless, it could still attract other threats."

"So you mean, you're not just worried about the civilization that placed the transmitter, but also about other unknown alien civilizations."

Zhang Shoucheng's words exactly matched Lin Ju's thoughts, who immediately expressed his own conjecture.

"That's right, this signal doesn't conceal its intelligent characteristics at all. Any capable intelligent civilization that receives it will know what it is.