People don't stop things they enjoy doing just because they reach a certain age. They don't stop playing tennis just because they turn 40, they don't… - Isaac Asimov

It had been a pretty good world, he thought. Not perfect, far from it, but good enough. Most people had been reasonably happy, most were prosperous, there was progress being made on all fronts — toward deeper scientific understanding, toward greater economic expansion, toward stronger global cooperation. The concept of war had come to seem quaintly medieval and the age-old religious bigotries were mostly obsolete, or so it had seemed to him. And now it was all gone, in one short span of hours, in a single burst of horrifying Darkness.

he would much prefer to see it done a week before his death rather than a week after.

Yes, but what about tomorrow? "There'll be no tomorrow!" "But if there is. Say that there is — just for the sake of argument. That anger might take shape as something serious. After all, you know, the whole financial world's been in a nose-dive the last few months. The stock market has crashed three separate times, or haven't you noticed? Sensible investors don't really believe the world is coming to an end, but they think other investors might start to think so, and so the smart ones sell out before the panic begins — thus touching off the panic themselves. And then they buy back afterward, and sell again as soon as the market rallies, and begin the whole downward cycle all over again. And what do you think has happened to business? Johnny Public doesn't believe you either, but there's no sense buying new porch furniture just now, is there? Better to hang on to your money, just in case, or put it into canned goods and ammunition, and let the furniture wait. "You see the point, Dr. Athor. Just as soon as this is all over, the business interests will be after your hide. They'll say that if crackpots — begging your pardon — crackpots in the guise of serious scientists can upset the world's entire economy any time they want simply by making some cockeyed prediction, then it's up to the world to keep such things from happening. The sparks will fly, Doctor."