Re: FTL Travel is Useless even if it existed?

On Aug 11, 9:24 am, Paul Cardinale <pcardin...@xxxxxxxxxxxxxxx> wrote:
On Aug 9, 12:12 am, mike3 <mike4...@xxxxxxxxx> wrote:



On Aug 7, 1:01 pm, Paul Cardinale <pcardin...@xxxxxxxxxxxxxxx> wrote:

On Aug 5, 10:36 pm, mike3 <mike4...@xxxxxxxxx> wrote:

Hi.

Is this true?:

In Relativity,Faster-than-Light(FTL) Travel is the same as going
back in time.

False.

So does this mean that afaster-than-light(FTL) system need not go
back in time? Would it be possible to have "FTL" travel that does
_not_ go back in time and because of that, does not create paradoxes
plus is also is *useful*? (Because back-in-time FTL isuselessif you
want to communicate with/travel to places in the present/future and
not the past, paradox considerations aside. See what I'm driving at?)

You are trying (speaking rather loosely) to determine what happens
when and object moves FTL.
In order to do that, you need to apply a viable theory that allows FTL
travel.
I'm not aware of any such theory.


But isn't the reason relativity doesn't permit it because *if* you
could do
it, and send information through it, that would go back in time and
lead to paradox and causality problems?
.

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