I disagree that technology will get us asymptotically closer to true immortality. It is far more likely that technology gets us asymptotically closer to a theor

I disagree that technology will get us asymptotically closer to true immortality. It is far more likely that technology gets us asymptotically closer to a theoretical maximum lifespan that is determined by our relationship with the environment. Radical changes to our form might extend that theoretical maximum, but it is not clear that someone who wants immortality would be satisfied with a form radically different from human. As an example, an entity with a fractured consciousness that spans tens of thousands of lightyears (yet not necessarily dispersed enough to be considered immortal) would have a radically different concept of self. If one was uncomfortable with the concept of a few dying for the many, in order to perpetuate the species, then a dispersed consciousness devoid of a self seems equally unpalatable.