Re: Cost will stop time travel

In article <46fc06d8$0$26420$88260bb3@xxxxxxxxxxxxxxxxx>,
"Jim Relsh" <jrelish@xxxxxxxxx> wrote:

I'd be surprised if time travel in any shape or form (including sending
information to the past/future) would be possible.

I'm pretty sure sending information to the future is possible. Let's
try it:

....Yep, I'm now looking at information that was sent by me several
seconds ago. (And you're looking at information that was sent
considerably farther into the future than that.)

I've once heard some
idiotic theory that it would only be possible to travel to a point in time
after a time machine was invented. If you think about it that's totally
stupid since it merely depends on your frame of reference.

No it's not. I doubt it's possible, but it is logically consistent and
does solve the temporal Fermi paradox.

Aliens may have invented time travel before us still allowing
the 'Grandfather paradox' to take place.

Only if there are any aliens more advanced than us. No evidence so far
suggests that that is the case.

Besides, there is no problem associated with being your own grandfather
that a reasonably well-adjusted family can't cope with.

I've argued many times that we won't be able to know for sure if time travel
(or FTL travel) will be possible until we have a complete understanding of
the laws of physics, which we don't at the moment.

True enough. But at least we know that traveling forward in time is
possible; it's only going backwards that is tricky.

--
"Polywell" fusion -- an approach to nuclear fusion that might actually work.
Learn more and discuss via: <http://www.strout.net/info/science/polywell/>
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