He couldn't contribute much to the conversation here, nor offer any constructive suggestions.
He was able to stand here entirely because Master Mang trusted him.
But he didn't want to appear brainless, so what he could do was to echo some remarks he found reasonable.
...
"Li Shiji, do you know how many people live on Water Blue Star?"
"The latest data before the doomsday was 14.7 billion people."
"Do you know how many Doomsday Trains there are?"
"I don't know."
Chen Mang looked at Li Shiji and said softly, "I'll tell you, when we were still in the Tieling Wasteland, there were 50 million trains. Now, so much time has passed, this number might have decreased, or it might have increased."
"All trains—"
"At least 100 residents are needed to develop smoothly. Otherwise, the progress of mining will be very slow. We've only started selling 'mining robots' recently, and not many have been sold."
