A sophont who aspires to attain physical immortality through indefinite perpetuation of a biological, technological or cyborg body, or software equivalent. This involves various preservation and renewal measures, including intelligence modification such as life-memory archiving. Most immortalists end up losing their personal identity after a few thousand years at most.
Immortality - Text by M. Alan Kazlev While literal physical immortality remains a contentious point in a universe that, although vast, is still finite, the wonders of modern medical nano mean that all citizens of the Civilized Galaxy, to say nothing of the higher toposophic ai, are potentially immortal; at least on angelnetted worlds. See also life-extension, afterlife.