On 18/07/2016 7:59 pm, Stathis Papaioannou wrote:
On 18 July 2016 at 17:10, Bruce Kellett <bhkell...@optusnet.com.au <mailto:bhkell...@optusnet.com.au>> wrote:On 18/07/2016 5:00 pm, Stathis Papaioannou wrote:On 18 July 2016 at 15:42, Brent Meeker <meeke...@verizon.net <mailto:meeke...@verizon.net>> wrote: On 7/17/2016 10:04 PM, Stathis Papaioannou wrote: The problems arise because each copy has memories of being the original and, because of the phenomenon of first person experience, feels that he is the one true copy persisting through time How would it feel any different if he weren't? He doesn't know and neither does anyone else. So it's really meaningless to say he feels he's the one true copy. He's just relying on his previous prejudice that he was unique. Yes - it's a prejudice, but an important one nonetheless. I can be radically sceptical about the existence of the world and other minds, but still go about life as if it matters.But do the pronouns "I and you" have a referrent? It has been said about Descates' 'cogito ergo sum' that Descartes cannot conclude that he is thinking, he can only conclude that thinking is going on.From the fact that I think, it follows only that there is a thought at this moment, not that there is an entity that has a stream of thoughts. The entity, the "I", is not fundamental but emergent, the set of related thoughts. These thoughts are not necessarily connected through sharing a physical substrate. Sharing a physical substrate is a convenient method of producing thoughts with the right sort of relationship to each other, but as the sort of duplication experiments we are considering show, there can be discontinuities in time, space and across non-interacting universes, and continuity of identity, which is not meaningfully different to the illusion of continuity of identity, persists.
But you haven't shown continuity of identity without some substrate to provide coherence. You have relied on a particular notion of personal identity that has some serious problems in the examples that have been used. For instance, the loss of transitivity of identity throws into question the whole notion of an identity persisting in time.
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