I can just imagine the awkward situation of some of the last century's science fiction writers who have started to die off at fairly advanced ages since the 1980's, beginning with Robert Heinlein. They had made their livings decades ago by publishing stories premised on the idea that we live in a technologically successful manned "space age," yet in the real world they lived long enough to see that the "space age" effectively ended in the early 1970's. How does it feel to the still-living septuagenarian+ science fiction writers like, say, Jerry Pournelle, Larry Niven and Ben Bova, when they realize that they have outlived the basis of their careers by a couple of generations?