Beginning: If people can live forever, this is good news and a good hypothesis. This is the contribution of health preservation, the beauty of the environment, the progress of science and technology, the dream thing, and fully enjoy life. . . . . . Try to imagine.

Conclusion: If a person can live forever, it is bad news and tragedy. Everything can be cherished because it will disappear. In the limited time of possession and disappearance, he will cherish his existence and cherish the feeling of hugging him. If he is insatiable, he will lose interest, lose motivation and increase boredom and fatigue. Because it can't end, or he can't say goodbye gracefully, there will be no ecstasy waiting for him. . . . . . The world is a foregone conclusion. There is no chance to come back. The wife will never get married again. The boss has never retired. The enemy can only wait for him to have an accident and consume him by age. . . . . tragedy

Free play in the middle