The mystery of Ren Xiaosu's background

"Zero?" Yang Xiaojin thought back and said, "You mean the AI, Zero, has appeared in front of us as a human? How did it do that?"

"I don't know how it did it, but that's the intuition I have." Ren Xiaosu said, "I was able to sense it every time it called me even when its voice was disguised. It's extremely rational and will occasionally reveal its supercomputing ability. Remember when it worked with Ji Zi'ang, they made use of 12 points in a mountain to make it collapse? You've got a good knowledge of demolition too, so you should understand that no matter how good a demolition expert might be, there still has to be a limit. It's still possible to destroy a mountain by yourself, but I don't think it's possible to guide someone to destroy a mountain with just a few pointers."