Zhenggang is a pocket watch-like accessory worn by Princess Gaga, and it is also an essential tool for aliens, similar to the mobile phone that everyone on Earth must have.

In Chao Changshan's memory, Zheng Gang helped him translate and get to know the alien princess, helped him recognize the feelings of the crowd in the square, helped him check the historical changes of a place, helped him predict the future, helped him navigate to the universe near the earth, helped him listen to the flying saucer, and even helped him display his drawings in three dimensions.

Chao Changshan very much hopes to make a copy of such a thing so that it can be used by earthlings.

Princess Gaga understood Chao Changshan's thoughts, "Brother wants the humans on the earth to have such technology, right?" ”

Chao Changshan: "Yes, girl. ”

Princess Gaga: "Are you sure?" ”

Chao Changshan: "Sure." ”

Princess Gaga: "No! ”

Chao Changshan: "Hehe, sister." A gentleman does not take anything from others. This thing is not a thing of the earth.,If my sister doesn't allow it.,Then brother, I'm determined not to do it.。 ”

Princess Gaga: "Don't get me wrong, brother, I mean, not everyone is suitable for this technology. ”

Chao Changshan: "I understand what the sister means." But I'm still a little confused, just like a mobile phone, isn't it good to use it on the earth with one hand? ”

Princess Gaga: "My brother is so smart, he quickly understood the essence of this. ”

Chao Changshan: "Sister, tell me the truth that not everyone on this earth is applicable." ”

Princess Gaga: "Okay. The application of science and technology must have corresponding social ideas and humanistic consciousness. For example, mobile phones are already common in developed places on the earth, but it is still very difficult to understand this thing when it comes to extremely closed and backward places. They don't know how to charge their phones, they don't know the basics of cell phone communication, they don't know how software works. Of course, Zhenggang has solved the problem of interactive communication through the knowledge learning system, but there is a more terrible problem than not being able to use it. ”

Chao Changshan: "What's the problem?" ”

Princess Gaga: "It's a matter of violence!" ”

Chao Changshan: "How to explain?" ”

Princess Gaga: "What I haven't explained to my brother is the problem of Zhenggang's energy source. ”

Chao Changshan suddenly realized, "Yes, the girl really didn't tell me." ”

Princess Gaga: "Using Zhenggang consumes one of the most precious energy sources --- health. In other words, the people of the earth can understand, it is the essence of the living body, or the equivalent is the life span. ”

Chao Changshan: "Sister means that when this treasure is used, it will consume people's essence, and when it is used, people's life span will be shortened, or consumed?" ”

Princess Gaga: "Yes, my brother is the smartest man on earth. The understanding is very correct. ”

Chao Changshan: "Understood. But how do the humans on your intelligent planet use it, and do they consume your essence as well? ”

Princess Gaga: "Yes, all things are equal, and we also consume our own essence energy at the expense of using. ”

Chao Changshan: "It's a pity to have such a good treasure." ”

Princess Gaga: "There's no pity, all beings are equal, that's it." ”

Chao Changshan: "Is there any other better way, for example, not to consume people's essence." ”

Princess Gaga: "It has been decided from the scientific principles of its invention that it must be like this, at least for the time being, and nothing better has evolved." ”

Chao Changshan: "Thank you for your explanation, that's why you reminded us earthlings why we can't use this treasure." This treasure is good, but it is a bad thing after all. Aren't you afraid of losing your energy? I think you can't live without you, girl. ”

Princess Gaga's face was happy: "Because we are different from the earthlings, we have evolved for billions of years, and the earthlings have been purified for 100,000 years."