Indeed, Wei Cheng's conjecture was correct.
When his spirit flew out of his Nine Orifices and slowly wandered around the ruins of Celestial Mechanism City, he indeed detected a signal from the Star Observation Platform of the Thousand Mechanism Hall.
He didn't know the logic behind the operation of the Star Observation Platform. It must be some kind of encrypted contact signal that Alien Demons couldn't decipher.
Then, a trade Stele appeared before Wei Cheng.
Seeing this, he felt half relieved.
This meant that the trial mechanism provided a safe and reliable platform for both parties, just like G's grandson's, little G's Steam platform. It was akin to the operators like Telecommunication, Mobile, and Telecom. In any case, it was reliable and worth having.