> Anyway, not arguing from Sethra, someone sophisticated in physiology > or specifically memory should now chime in and explain what's involved > in a human-derived brain living three thousand years and maintaining > clear memories of active lives, which I suspect requires more radical > changes than long-lived brain cells - or I will form a hypothesis about > middle-aged Ds forgetting their childhoods etc. I note that the > Musketeers seem to maintain (or Paarfi finds it not worth exclaiming > about when he portrays them maintaining) clear recall of events some > seven hundred years in the past. If I recall, some people with eiditic > (photographic) memories have the experience of their heads filling up > (though perhaps this is just a breakdown in the storage mechanism - out > of my depth here obviously). Well, hold on a sec,ecause we're also dealing with a race that can remember their *past* lives. Taken that into account, it skews the memory hypothesis