Just as Lu Bai had said, he'd taken the elevator to the surface and back once before.
Though the elevator moved quickly and its interior wasn't particularly cramped,
that depended on what you compared it to.
Granted, if you ignored the safety risks, the elevator could carry more than a hundred people at a time.
But when the population that needed evacuating numbered over a hundred million, that was nowhere near enough.
A rough calculation made that clear.
If each trip carried a hundred people, and you counted the time it took to travel back and forth and get people on board, one round trip would take ten minutes. That was hardly an exaggeration; if anything, it was optimistic.
So how long would it take to move everyone in the Underground City to the surface?
The answer was nearly seven thousand days. It would take almost twenty years to transport all one hundred million people.
And the number of people who needed to return to the surface was well over a hundred million.
"There must be some other means of transportation, right?"
Li Shan said uncertainly, "I don't have the clearance to know what it is, but according to the historical records, the whole process of entering the Underground City took three months back then."
After all, this cafeteria mainly served City Council staff, so the food was quite good.
That was why Feng Yixuan had been focused on her meal at first, not joining in their conversation.
Unfortunately, she didn't have much of an appetite and was full after just a few bites.
Unable to eat any more, she could only slump back in her chair and remind them, "Deputy Captain Lu should have the clearance to look it up, right? You're not going to figure anything out by