“At Death’s End”, written by James Blish (1921-1975), was published in the May 1954 issue of Astounding Science Fiction magazine. Surprisingly, this short story is still only accessible in hard copy, within the original Astounding Science Fiction edition. Apart from a brief review by Robert W. Franson, who introduced me to this work, there is today surprisingly little literary analysis devoted to “At Death’s End” – even though it offers a fascinating glimpse into how a science-fiction writer from an earlier era perceived the prospects for indefinite human longevity, from the vantage point of the scientific knowledge available at the time. The world portrayed by Blish is, in some…