Extremely Difficult

"I traveled through time?" "No! You didn't!" "So, who are you?" "I am your master" "What is this place?" "In the parlance of your era, this place is called Earth." "Then what's wrong with me now?" "It's not convenient for me to tell you the details, but you are not an exception." "How many others are like me?" "You may not be able to make a mistake in an era. In your era, that person should be called Wang Mang." "Wang Mang usurped the Han Dynasty?" "The most widely circulated allusion in your era is this allusion." "You always talk about era, what kind of unit is that?" "Era is a period of human civilization" "How many civilizations have human beings existed?" "Have you never heard of prehistoric civilization?" "Chaos gave birth to Tai Chi, and since then there has been good and evil, and these two powers have derived a third kind, the power of evil. This power has no attributes, and both good and evil can be controlled. The good side can be used to do good, and the evil side can use this power to become more evil. This is how your era ended, because this kind of power is not controlled. People control power that does not belong to them. Once it is out of control, it will be a disaster. Am I right?"