Correspondence with Graham Oppy on mathematical difference between infinite & indefinitely long lifespans; part 2

For the initial email exchange please see: Correspondence with Graham Oppy on mathematical difference between infinite & indefinitely long lifespans; part 1

Email #3, 24th of February, 2020

Hi Graham,
thanks, I’m blown away by the breadth of this argument, and the finite list assumption on strong upper bound ‘wipe-out’ events of humanity’s existence make sense. I need to think a bit more on exactly what kind of mathematical argument is this, seems familiar from analysis, some middle value kind of argument maintaining existence but not showing unicity of an opportunity, but am running ahead of myself.
However, my question is really framed with an individual human being in mind, and assumes a technology that eliminates all internal aging-related (very distal and not proxy) causes of death and assumes only non-zero chance of dying every day (every minute, every second,…) from external causes. Continue reading “Correspondence with Graham Oppy on mathematical difference between infinite & indefinitely long lifespans; part 2”

Correspondence with Graham Oppy on mathematical difference between infinite & indefinitely long lifespans; part 1

Email #1, 8th of February, 2020

Dear Professor Oppy,
Attila Csordas here, aging/longevity biologist and philosopher, based in Cambridge, UK. My philosophical work concentrates on the philosophy of indefinite longevity, the upper limit, still possible scenario of biomedical life extension technologies, with a non-zero mortality rate. ‘Indefinite’ here capture the possibility of technology providing indefinitely long lives but also capture (epistemologically) our current scientific understanding (or better the lack of) of being genuinely uncertain about how far we are able to push human lifespan with technology. Just because we know no bounds here, it does not mean this that there are no bounds. This formulation is new and am working on a book on it, called Open Lifespan However still majority of people are stuck with the term immortality and its connotations when thinking about this, both pro and contra, so am looking for ways and examples to phrase indefinity and indefiniteness helping me clearly to distantiate it from infinity. Continue reading “Correspondence with Graham Oppy on mathematical difference between infinite & indefinitely long lifespans; part 1”