"In a sense, the Time-Turner really only has one function.
It speeds up accumulation."
Dumbledore waited for Zhang Xiao to digest that before continuing:
"Even so, the Time-Turner still has considerable limitations. For example, the amount of time each person can use it is fixed.
And those whose power has reached a certain level cannot use a Time-Turner at all.
Because it cannot create a sufficiently powerful duplicate.
It was only after extremely thorough research that the Ministry of Magic finally agreed to allow limited use of Time-Turners for studying."
Zhang Xiao more or less understood now. No wonder Professor Dumbledore had called it a little trinket. Only a little trinket would be left for young wizards to use.
"Professor, when I received this term's timetable, I also received a very stern warning from Professor McGonagall about using the Time-Turner."
"Oh, that was to frighten you." Dumbledore laughed delightedly and winked at Zhang Xiao.
"We have to instill a healthy respect for Time-Turners in young wizards, so that they use them carefully and for the right purposes."
Once his laughter subsided, Dumbledore sighed softly and said reflectively:
"Time, time... what a wondrous, magnificent power. Everything is so insignificant on the scale of time."
He gazed at Zhang Xiao with eyes as deep as the ocean and said gently:
"Zhang, this is a rare opportunity. Though this is only a false form of traveling through time, it still holds countless mysteries and can give you much to reflect on.
Time is wondrous and enchanting. The 'other you' it creates has always been a major focus of the Ministry's research. Make good use of it. Don't waste it."
Zhang Xiao nodded gently. He suddenly thought of himself. Had I... traveled through time?
"Professor Dumbledore, is it truly impossible to reverse time?"
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