Lin Mu heard senior Xukong's mutterings in his mind but did not react. Although they were a little shocking to him, there were far too many people around him, thus he did not want to arouse unnecessary attention.
"What do you mean, Senior? How can someone do that?" Lin Mu questioned.
"I am not a hundred percent sure, it could be something else. But there are far too many flaws in the understanding of the people in this world. Even if it is a low level world, they should have at least figured out the basics such as these. This world most likely has a history of at least ten thousand years or more.
This much time is enough for many generations of cultivators to be born such that they would know most things about the body tempering realm at least." Xukong answered.
