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- Newsgroups: sci.astro
- From: paul@pands.demon.co.uk (Paul Wilson)
- Path: sparky!uunet!pipex!demon!pands.demon.co.uk!paul
- Distribution: world
- Subject: Re: Fossil Paradox (was: Structure of Time)
- References: <ARI.HUTTUNEN.92Aug13031214@silver-surfer.hut.fi>
- X-Mailer: cppnews $Revision: 1.13 $
- Organization: P-and-S Ltd
- Lines: 46
- Date: Sat, 15 Aug 1992 15:20:40 +0000
- Message-ID: <713917240snx@pands.demon.co.uk>
- Sender: usenet@gate.demon.co.uk
-
-
- In article <ARI.HUTTUNEN.92Aug13031214@silver-surfer.hut.fi> Ari.Huttunen@hut.fi (Ari Juhani Huttunen) writes:
-
- > In article <1992Aug11.235257.21903@nosc.mil> clarkk@nosc.mil (Kevin D. Clark) writes:
- >
- > ! It sounds like those questions where one is asked if you could go back and
- > ! kill Adolph Hitler even if it would mean your own death, would you do it?
- > ! This has always sounded logically impossible to me. If in 1992 I was sent
- > ! back to 1930 (or some such year) to hunt down a man named Hitler and I
- > ! was successful, but I was killed, then none of the atrocities of WWII would
- > ! have happened (in theory). However, when 1992 rolled around I would never
- > ! be asked to go back and kill Hitler because he would never have committed
- > ! those crimes. So if I WASN'T sent back, then no one would have killed him
- > ! and he WOULD have committed the crimes. Aaaugh.....no wonder I majored in
- > ! engineering ...the answers were in the back of the book.
- >
- > The answer to that problem is simple. A basic law that has not yet been
- > stated is the law of _causality_. You could travel backwards in time but
- > you would end up so far away from 'here' that when you traveled back
- > with the speed of light, it would at best be the present time. That would
- > also be the reason why time can't go backwards.
- >
- > That's what I think. I don't have any proof, except that everything we
- > see works that way. I think that's plenty of proof.
-
- Circumstantial evidence yes, but not proof.
-
- > If you can construct an FTL communication device, I will admit I am
- > wrong. For then you could travel 10 years backwards in time to a place
- > 10 light years away and communicate with someone on Earth with FTL,
- > and thus breaking the law of causality. (Hmm... You would only need
- > one of those devices if you were willing to wait ten years...;)
-
- I must admit that this kind of comment has always concerned me. Not because
- of any belief, but because (my understanding here - please correct if I'm
- wrong!) current quantum theory allows (requires?) the transfer of information
- instantaneously. The act of observing one particle of a pair, affects the
- other. The comment from a physicist recently when I mentioned this was
- something along the lines of ".. well it's OK, because the amount of
- information which gets transferred is insignificant". And *that's* the bit
- that concerns me. You can break the lightspeed barrier as long as the effect
- isn't significant.
-
- --
- Paul Wilson, P-and-S Ltd, P O Box 54, Macclesfield, SK10 1RD, UK
- [phone] +44 (0) 625 - 502224 [email] paul@pands.demon.co.uk
-