Ren Baqian spent a lot of time and effort to make the empress roughly understand the significance of technology.
However, it was impossible for the empress to understand everything. Even if she was very smart, it was not possible for her to understand something that she had never seen or heard before within a short period of time, let alone challenge the enormous social system of this world.
Even an Earthling, who was influenced by technology every day, only had a rough idea about many things on Earth. Some ideas were even wrong.
Despite this, Ren Baqian still racked his brain to make the empress see the differences between Earth and Dayao.
"Your Majesty, I should send you back first. We have to let everyone know you're safe. I think everyone in the palace is worried sick about you now," Ren Baqian said, "If you want to explore the Earth, I can bring you here again in the future."