The fact that we don't know how to do it doesn't prove its impossibility. - John Wyndham

Fate is not above using inconsiderable details for her obscure purpose.

She agreed, really. But she said, well, this is the kind of world we have to live in. There is so very much that's wrong with it, but then life is so short that the best anyone can do is to come to terms with it while doing her best to preserve her own standards. She said it would be different if we had more time to spare, but now there isn't enough margin to make people do things about it. By the time your children have grown up you're beginning to get old, so it isn't worth trying to do much, and then in another twenty-five years it will be the same for them, and— Why, Diana, what on earth's the matter . . . ?

It was so absurd to die at sixty, anyway, and, as he saw it, it would be even more wasteful to die at eighty. A scheme of things in which the wisdom acquired in living was simply scrapped in this way was, to say the least, grossly inefficient. What did it mean? That somebody else would have to go through the process of learning all that life had already taken sixty years to teach him; and then be similarly scrapped in the end. No wonder the race was slow in getting anywhere—if, indeed, it were getting anywhere—with this cat-and-mouse, ten-forward-and-nine-back system.