Imagine living an ordinary life, where you earn just enough by hard labor and you have your fair share of happiness, sadness, and other feelings. And when you reach 80 years old, then suddenly the world ends, probably of some cosmic death rays. Or probably because of some accidental black hole in the lab that is stable enough to grow and swallow us all. Or a nuclear war, or some 10 Richter scale Earthquake, or some big asteroid.
Wouldn’t you feel anger? Not for the actual world ending, but, like the world could have ended when you were 4 or 5, or during the peak depression in your 20s, before all the struggles and heartbreaks and setbacks and failures. Before you had your children, before grandchildren.
Before you found out that your dreams were never going to be real.
It shouldn't make a difference to the Universe in sending an asteroid, or increasing the pride of some leaders, when you are 80, instead of doing it when you were 5.
As if the Universe just wanted to watch you suffer all those years and then when you were going to die naturally, decided to laugh. I would be so angry if this happens. But anyway, whom would I be angry at? Who would answer me?
In this scenario, what would have been the optimal time for the world to end? Is it when the subject is 5 years old? Or before his birth? Well, why make his parents and grandparents suffer then? So 1000 years ago would be the best? Well, why stop here? Maybe a million, before modern humans evolved?
If it's inevitable, the best time for the world to end was millions of years ago, and the second best time, probably, is always, right now.