| Author |
Topic: Time Travel |
Ganesha Myrmidon |
posted December 17, 1999 05:48 PM
I expect nerdy ol' Wes learned that in StarFleet School, along with
Hair Gel Application and Bladder Control (for those flyless lycra
numbers he seemed to like).
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Naraoia Operative |
posted December 17, 1999 06:35 PM
Thank you all for not getting angry about my belligerent post. As to
what happened inbetween the two: well, my subjective experience was
that I calmed down. Do you ever feel angry for no reason, it comes
over you like a wave and it goes away just as quickly, leaving you
to ask, what the hell was I thinking?
The objective experience: who knows? I think it's true we can't
prove or disprove free will--at least not until someone actually
builds a time machine (stop round at my place and I'll buy you a
drink, we'll talk... you can get my meatspace address from me in the
future).
Zephir: I've used the white flame myself several times now. The
first time I really got it, it felt like one of those chills that
runs up your spine--only ten times as intense. It left me doubled
over and coughing, as if my "self" were having an adverse reaction,
but it felt good, too. Centering.
As to the question of whether or not the past and future exist:
good question. No answer, but hey. As for the possibility of time
travel: every physicist I've met says the same thing. It's not just
possible, it happens all the time at the quantum level, and quite
possibly some of the time at the bigger levels we inhabit just as a
natural process. I know of at least four time travel methodologies
that work (on paper) without a hitch. They're all terribly
impractical, but, c'est la realite.
Thank you all for your kind responses.
|
grant Operative |
posted December 18, 1999 08:14 PM
I seem to recall a bit in New Scientist not so long ago about dark
matter really being backlash from the End of the Universe (the Big
Crunch) going through an area of our space where time runs
backwards.
Which would imply that action, at least on the macro level, is
predetermined.
I wonder though, if will and action can be separated. Whether our
decisions to do x, regardless of the outcome, make a difference on
some other level.
Uhh... I guess I'm getting metaphysical.
<sigh> You may ridicule me now.
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ianjones Myrmidon |
posted December 19, 1999 10:01 AM
On a macro scale the universe is an entity that conforms to certain
rules, and can therefore be accurately predicted, furthermore, when
prediction fails this can then be included in the description of the
system (the rule book). However the rules grant describes are only
reliable in the current configeration of this universe.
Systems can and do go through chaotic responses to minor changes
which lie outside the generality of observation based description.
The term break boundary is applied to this. For example the effect
of adding a sub electronic partical to an atom was fully understood
for all circumstances until the combination of 'Uranium', a
particular quantity, and other specific circumstance were applied.
The rule book grew an extra chapter.
This doesn't mean the rules had changed, but that our capacity to
predict the universe is limited.
Break boundaries occur in most system in both physical and social
sciences; this does not mean that these systems are not determinant,
just that we are unable to determine them. THerefore there may be no
such thing as free will.
There is apparently freewill in non physical systems. Riots are
always interesting. The last riot I was in thru up spontaeneous
social rules one of which went like this:'only burn and loot
premises that are owned by government or national organizations' A
community worker I knew was apologized to because his motor was
burned in error. In that one individual can alter the actions of a
mob, and a mob can do quite dramatic things to the physical
universe, there does seem to be room for a limited model of free
will in the universe. That is an aspect of chaos theory.
Unless of course you believe in a detailed model of determinism,
in which every action, each thought of every individual is
predetermined in utter detail and that out sense of individual
empowerment is completely bogus.
My personal belief is that we have limited ability to change our
environment, and that that ability is of limited impact on the
universe. For example the anti nuclear movement might have reduced
the rate of decay of the universe (by slowing down the rate of
destruction of atomic matter) by days or even weeks. Which is not
much.
However in social as opposed to physical systems we can influence
others.
I realize that this may still only be 'the universe moving
through us' and that our sense of achievement in doing this may be
entirely bogus.
This does not seem to conform with our physical understanding of
the universe. Particals pop in and out of the universe randomly,
usually for such short periods that they don't interact with other
particals at all. But occasionally they do survive. There are cheats
and spontanaetity in the universe.
Free will is probably like that. It can't do much often, and is
far more significant in social systems:- stories do change people,
than in physical ones but it does exist.
Although of course our sense of identity masy be entirely bogus.
Free Will exists, but we (as we experience it) do not.
What experiment can we do to disprove this theory?
|
Jackie Susann Operative |
posted December 19, 1999 10:22 AM
Ian, you said that, "Break boundaries occur in most system in both
physical and social sciences; this does not mean that these systems
are not determinant, just that we are unable to determine them." Now
forgive my half-arse miconceptions about quantum physics or
whatever, but I thought one of the things
quantum-chaos-science-jigglies showed was that it wasn't even
theoretically possible to predict certain things; i.e., they were
totally random. (I think this had to do with the way atoms behave or
something.)
I think I pretty much agree with what Tom said earlier. The
universe consists of an undetermined flow of dynamic singularities;
the 'present' is a locus from which infinite potential futures and
pasts spread, fluid and unstable; a freakish collage of
possibilities. Determinism is a self-fulfilling prophecy used to
defend our identities against the radical indeterminacy of the
world.
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ianjones Myrmidon |
posted December 19, 1999 04:29 PM
Quantum physics applies to individual particles.
The concept of break boundaries applies to systems.
An individual particle can leap into existence or cease to exist
for no apparent reason but the net aggregate (the system) remains
stable in conformity to its own properties, until it hits a break
boundary when it aquires new properties.
These ideas are not inconsistent.
I'm not arguing for either determinism or indeterminism. I would
like an accurate map of possibilty.
And for time travel today's paper sez its possible but painful.
See The Independent On Sunday, p12 or www.ri.ac.uk/christmas/ for the
lecture.
|
Naraoia Operative |
posted December 19, 1999 08:26 PM
Here goes my stab at the science (and remember, I'm a science
fiction writer, not a science fact technician, so don't take this
too seriously):
The randomness we see at the quantum level is anything but.
Uncertainty places limits on our ability to identify the root causes
for subatomic phenomena, but one could hardly give a quark the
attributes of free will or perversity: they act in certain ways
determined by the laws that allow them to exist, and their behavior
is based on probabilities--a little looser than your Newtonian types
of determinism, but still based on iron rules.
It's my belief that the macro world--what we see and touch--is,
as Grant Morrison put it so eloquently, "much simpler than we
think". Fractals (which have always existed, we just didn't notice
them until recently) are just equations, but it seems they are
equations that can begin to describe the courses of rivers, the
ramification of trees (branchiness) and the shapes of our own
bodies, inside and out. We're beginning to find the force that makes
the mighty oaks to grow. I believe that fractals and other emergent
forces shape the whole of the physical universe--and since they also
determine the structure of our brains, I think they influence our
behavior as well. Does it not seem to you all that you keep meeting
the same people, who are doing the same things, over and over?
Chaos physics is actually a method of describing the real world
as anti-random. Yes, it says you can't predict certain events, but
at the same time it suggests there are strange attractors at work
behind the scenes. After the fact you can look at the seemingly
random occurence of a given series of events and if you look closely
enough you begin to see a shape forming on the graph--a pattern
emerging from the chaos. The Lorenz Butterfly and the "dust" pattern
of telephone line noise are the classic examples of this.
The point of all this rambling is as follows: there are hidden
structures and deep patterns in everything we see. So far science
has only gone so far as to describe a few of these and hint at more.
Personally, I want a vision of physics which begins to unify both
the quantum and the macro scales, the cosmic and human levels. I
truly do think it's merely a matter of frames of reference--that if
you could stand at the right spot and plot both the course of a riot
and the spread of a galaxy on the same piece of graph paper,
eventually you would see the same shape emerging. I believe (and
here's where I get truly mystical about it) that all the shapes you
could ever graph, when superimposed, will form one Shape, a
surprisingly simple solid object with either eleven or twenty-six
dimensions. I believe that in the first moment after the Big Bang
this shape emerged into being and that all of history since has
merely been a series of self-similar reiterations on this one basic
shape. Call it the Cosmic Egg, or Yggdrasil, or the Garden of Eden,
or whatever: I think it is this shape which defines our reality,
past, present, and future. It is like the seed from which a giant
crystal grows, the grain of sand around which accretes the
pearl.
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