To expand on that notion a bit: Many 'Singularitarians' believe that uploading can 'solve' all the problems of an embodied consciousness, including mortality. Which is untrue. Consciousness remains embodied after uploading, it's just that the nature of that body changes dramatically. This leads to its own set of problems and opportunities, and the possibility of backups significantly extends the expected life-span. But according to current best understanding of cosmology, especially the Second Law of Thermodynamics, even the best backups can't guarantee immortality.