Corkscrew causality Forum: Spacesettlers
Thread: Corkscrew causality
# 10930 bysailorbarsoom@... on Oct. 21, 2008, 1:25 p.m.
Member since 2021-10-03
No no no, I understand how time travel screws
around with causality. If I go back in time
and give Lee Harvey Oswald a wedgie, thus saving
JFK (I'm assuming no other shooters), then events
happen in 1963 (JFK celebrates Thanksgiving) due
to an action taken in 2008 (me getting on my time
machine).
Then of course there's the whole question of if I
know JFK's life was saved why do I bother going
back? According to the history books, he doesn't
need any help from me.
Even if I just go back an hour and stand still for
a minute and then come back, you still have the
situation that some O2 was converted to CO2
*back then* because of something I did an hour
later.
Corkscrew causality.
But it seems that FTL *without* time travel
wouldn't have causality problems. Perhaps FTL
inevitably involves time travel, but then again,
there might be a loophole.