Re: TimeTravel

Dana Hedberg (dah@powerpicture.com)
Wed, 21 Oct 1998 13:34:11 -0500

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Dan Fabulich wrote:

> Lady D'Los wrote:
> >Two simple questions which I feel will tickle your brain cells...
> >Timetravel, a Transhuman possability, or just a daydream? Would it be a
> >good thing, or disastrous?
>
> Into the future? Absolutely. Backwards? Almost certainly not.
>
> Consider: if we were develop backwards time travel at some point in the
> future, then someone could have gone back in time to some point before
> today. If time travel will be discovered, then it has already happened.
>
> Thus, due to the very nature of time travel, if it hasn't happened already,
> we can safely assume that it never will.
>
> -Dan
>
> "Decay is inherent in all compounded things. Strive unceasingly."
> -- The last words of Buddhadasa Bhikkhu

Near the end of the book, _The Fabric of Reality_ by David Deutsch, he discusses the possibilities of time travel. He claims that both interactive past-directed and future-directed time travel is possible.

He is a believer in the "Many Universes" model of reality (a model of reality based on quantum theory which suggests the existence of an infinity of universes, an infinite proportion of which are identical, or near-identical, to ours with respects to the laws of physics and "historical" events), and suggests that time travel is actually movement between these universes, circumventing commonly held paradox beliefs about time travel. Furthermore, one can only travel to places(a "time" within the place?) in which time travel has been accomplished, and only as early, within that universe, as the first instance of the time travel "device".

At no time, however, does he make claims that he believes time travel will certainly be physically tenable - the technology may not be possible. He does mention, though, that some theorists suggest that time travel may be possible near a rapidly spinning black hole.

-d.a.h.

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> Dan Fabulich wrote:

Lady D'Los wrote:
>Two simple questions which I feel will tickle your brain cells...
>Timetravel, a Transhuman possability, or just a daydream? Would it be a
>good thing, or disastrous?

Into the future?  Absolutely.  Backwards?  Almost certainly not.

Consider: if we were develop backwards time travel at some point in the
future, then someone could have gone back in time to some point before
today.  If time travel will be discovered, then it has already happened.

Thus, due to the very nature of time travel, if it hasn't happened already,
we can safely assume that it never will.

-Dan

"Decay is inherent in all compounded things. Strive unceasingly."
         -- The last words of Buddhadasa Bhikkhu

Near the end of the book, _The Fabric of Reality_ by David Deutsch, he discusses the possibilities of time travel.  He claims that both interactive past-directed and future-directed time travel is possible.

He is a believer in the "Many Universes" model of reality (a model of reality based on quantum theory which suggests the existence of an infinity of universes, an infinite proportion of which are identical, or near-identical, to ours with respects to the laws of physics and "historical" events), and suggests that time travel is actually movement between these universes, circumventing commonly held paradox beliefs about time travel.  Furthermore, one can only travel to places(a "time" within the place?) in which time travel has been accomplished, and only as early, within that universe, as the first instance of the time travel "device".

At no time, however, does he make claims that he believes time travel will certainly be physically tenable - the technology may not be possible. He does mention, though, that some theorists suggest that time travel may be possible near a rapidly spinning black hole.

-d.a.h. --------------E4B1DA24B7FB8EF1F5878A0F--