If you know just by looking at person when he or she will die (just the when, not the cause), how would use this information, if you would use it at all? This is of course a hypothetical situation with the following conditions: You have this knowledge (except about yourself) and you cannot choose to not know. The time of death is fixed, not changeable by whatever course of action. So, don't fight the hypothetical (if you're struggling with it, better not reply). For example, if you know your friend is dying tomorrow, would you tell him? Would your behavior with him today change? Or if you know that one of the two presidential candidates will die within the year after the election, would you bother voting for him? Stuff like that... ------------ I think it's both an advantage and disadvantage to have this knowledge. On one hand, I see a lot of people regretting not being able to say things to or do things with someone before that someone passes away. If they knew in advance that the person will soon die, then they can say all they want to say to him and not have that regret later. I might use this information in this manner. The disadvantage is the burden. There would be a part of you who would want to do things to stop it from happening (even if you know, like in this scenario, that it's inevitable), especially if you think that death is a bad thing. Then you'd feel frustrated later. And much as you want to ignore the information, I can imagine a time when you wish you can let the person know he's going to die soon. Perhaps in an effort to make him do all that he wants before he runs out of time. I might do this too.