@Mapax—
You shouldn't confuse religions that believe in reincarnation involving no sense of past life with those that believe in an immortal (=undying) soul that retains that sense. More importantly, you shouldn't
presuppose that these religions are generally metaphysically or morally coherent. Saying that
lots of religions assert something and therefore I must accept it is not much better than saying that
your religion asserts it and therefore I must accept it.
Yes, “murder” is a legal term; so is “die”. But, as a legal term, “die” means something
different in law from what it means in medicine. And, in everyday discourse, “murder” means something different from what it means in law, while “die” has a meaning different
both from the medical sense and from the
legal sense. As I said,
you're mixing and matching lexica in an attempt to defend your position, but the result is just an abuse of language. For a proper discussion of morality, one doesn't thoughtlessly confuse the vocabulary of medicine with that of law nor either with that of everyday conversation.
We
have seen it argued in court that a person has died or not died, because the legal definition of death had involved stoppage of the heart, but hearts have been successfully transplanted. The
legal definition of “die” has at times
failed for purposes of morality; the
legal definition of “murder” has at times failed for purposes of morality.
You insist that people in these stories do not
continue to live, because they do not live continu
ously; well, actually, there are things that are continu
al without being continu
ous; but, so far, you haven't shown that there is any discontinuity — that there is
any moment in which the victim is not alive
somewhere. You've just sort-of …
presumed it, as if it were obvious.
When the alternate world exists in a different space-time, there is literally
no meaning to any claim that the person was dead for some
time between leaving one space-time and arriving in another, because
time has no meaning outside of a space-time.
(In the case where there is
time-travel into the future within the same space-time, we could say that the victim was not alive from the time at which she leapt until the time that she arrived, but that would be true in
any story of travel into the future, with or without Truck-kun. In the case of time-travel into the past, the person would cease to be alive from the moment that she leapt, perhaps without ever being alive again in the future, but again this is true with or without Truck-kun. In either case, it would be silly to claim that time travel
kills the person simply because he or she is not continu
ously alive.)
What is relevant for the moral question in these stories of whether the person has been murdered or otherwise has died is whether there is an internal experience that is not followed by another. If there is, then he or she has died; otherwise, the victimization is of a different sort.