1. I wrote Dream of Red Mansions backwards and found that it is still a tragedy.
2. Save one person or save one time and space? There is never a standard answer to the trolley problem, but everyone has their own best choice.
3. If we can predict the future, will we be able to prevent the next bad thing?
4. If we had the opportunity to live a life for someone else, would we do better than him or her?
5. If we had known that we were facing a friendship (love) that would not last long, would we have been 100% sincere or would we have been perfunctory?
6. Are ghosts definitely scarier than humans?
Purpose: If we didn't predict it, could we have prevented the tragedy?