On 20/02/14 14:36, Sebastian Rahtz wrote:
> there’s a whole range of possibilities here.
> etc which of the right-hand “people” is a distinct <person> is
> not at all clear.
Call me an anglosaxon empiricist if you will, but this doesn't seem
difficult to me.
* Syd disguised as David
-- Syd and David both have separate existences as real persons: Syd is related to David by assuming his disguise
* Daniel Day Lewis acting the part of Lincoln
-- same thing again
* Barry Humphreys acting the part of Edna Everage
-- Not the same thing, because Everage has no existence independent of Humphreys
* Fernando Pessoa writing as Ricardo Reis
-- ditto (I assume)
* Zeus appearing as a swan
-- the swan is still Zeus. Zeus did not assume the form of distinctly identified "Swan no 1234"
* Jekyll and Hyde
-- Both <persona> of the same <person> : same as the Humphreys case
I'm surprised you haven't mentioned Dr Who yet.