I agree very much with Zhang Xiaohua's words, "There is nothing in time-travel novels. It's just that one person has the memories of two people, or in other words, two people have one memory. It's just like taking a train from Beijing to Shanghai. When you wake up, you're in a different place, a different environment, and you're still you." So it's not a big deal after time-traveling, just calm down and find your way home!