MERGED: Is time travel possible?

[batsoy]

---

time travel going to the future is possible not to the past.

[Passion8]

Yes, very good points. We are indeed travelling through space-time at the moment. We may be sitting still in our chairs, but the Earth itself is rotating AND also moving through space, and the Sun is moving amongst the stars, while moving around the Milky Way, and the Milky Way itself is also moving. All that time, time is also flowing forward. Thus, space and time are interwoven.

-RODION

very well said rodsky. u r absoulutely right.

[robertski3]

WAy makahimu ani bisan siguro ihurot pa ni bill gates iya kwarta para makahimu ani nga machine..

[hizuka007]

time machine? sa karon wala pa ni.... aw naa na diay " YouTube - Discovery - First Time Machine "
pero miniature pa, prototype pa lang.

pero pangit man ang time travel kay dili nimo mausab imong past history.
Example:
"Kung mobalik ka sa past dd2 dapita nga wala pa nagkailhanay imong lola og lolo. so kung imong patyun to imong lolo that means nga ang imong mama wala napanganak, tama ba? So kay wala man napanganak imong mama therefore wala pud ka napanganak, tama ba? ... So kay wala man ka napanganak therefore kinsa man diay ang nagpatay sa imong lolo nga wala mn ka napanganak?"

mao nay gitawag sa mga scientist nga TIME PARADOX.
Unya ang theory sa mga scientist nga possible daw nga ikaw to ang nagpatay pero at the moment nga NAPATAY na nimo ang imong lolo dili na daw na mao ang imong TIME LINE. Kay ang imong TIME LINE man kay wala man namatay imong lolo kay naanak man imong mama.

So in short, moduha ang TIME LINE. One is your CURRENT TIMELINE, and ONE is the is the ALTERED TIME LINE nga DILI na imoha.



So kung nagplano kag balik sa past para warningan nimo ang imong papa about sa incoming car accident niya, then inig balik nimo sa imong CURRENT TIMELINE patay gihapon imong papa. walay nausab masking gamay nga storya.

[dndj571]

At the moment, impossible pa. Doubt, intrigue, questions are those factors that makes scientist invent something new. Who knows, maybe its near or maybe not.

[vanschen]

Are you optimistic that machines will soon be invented & be used for time travel? Discuss.

an excerpt from a forgotten source:

KIP THORNE: Rather quickly I recognized that what he
probably should do is replace the black hole as a
means for rapid interstellar travel with a wormhole.
At that time wormholes were not something that were
part of science fiction. They became part of science
fiction as a result of this interaction between Carl Sagan
and me.


KIP THORNE: Let's suppose that I have a wormhole with
one mouth here and the other mouth over there. Now
there are three different possibilities for how time
could be hooked up through the interior of that
wormhole. The first is that when I stick my arm into
this mouth it came out over there simultaneously. The
second possibility is that when I stick my arm into
this mouth it comes out over there only after some
delay, and the third possibility is that if I go into
this wormhole mouth then I come out over there before
I ever even go in. Let's just see that. It was quite
a surprise when I realized that with a single
wormhole you could have time hook up towards the
future or towards the past and that you can actually
manipulate the wormhole and change how time hooked up.
That was a surprise but a very satisfying surprise
when I really understood how it worked.


KIP THORNE: Once it appeared that time machines were a
real possibility we then had to face the question of
paradoxes, of going back in time and changing history
and thereby causing the foundations of physics to
crumble beneath us.


STEPHEN HAWKING: Time travel would seem to lead to
contradictions. If one was able to go back and change
the past.


IGOR NOVIKOV: This is the main principle. All these
events must be in self-consistency with each other.
It's so simple, so obvious, but more of that we gave
the strict mathematical proof that this principle is
the consequence of the basic ideas of the physics.


IGOR NOVIKOV: I can have free will to walk along this
wall without special equipment. It's my free will. Can
I do that? No, I can't. Why? Because of a law of
physics, because of the law of gravity. It's forbidden.


<Laws of physics - like gravity - already restrain our
free will. Novikov thinks these same laws would
restrain the free will of a time traveler bent on
changing the past.>


IGOR NOVIKOV: Well, if you ask me do time travels
really be possible in the future, I must give the
positive reply, you see, it, it will be possible.


DAVID DEUTSCH: Quantum mechanics is a theory of many
parallel universes. Some of them are alike and some of
them are very unlike. There are nearby universes that
differ from this one only in the position of one
photon or one electron. There are other more distant
universes where we're not filming here at all and
there are others where I was never even born.


DAVID DEUTSCH: When one travels back in time one does
not in general reach the same universe that one starts
from. One reaches the past of a different universe.


DAVID DEUTSCH: I myself believe that there will one
day be time travel because when we find that something
isn't forbidden by the over-arching laws of physics we
usually eventually find a technological way of doing it.


STEPHEN HAWKING: A physicist working on the possibility
of travel into the past has to be careful not to be
labeled a crank, or accused of wasting public money on
science-fiction fantasy.


STEPHEN HAWKING: I wouldn't take a bet against the
existence of time machines. My opponent might have seen
the future and knows the answer.

[Eisen Japhet Larnx]

Miracle can do it....
it opposed the law of nature...

but when?....
when we sleep...
heheheheh...

man can do it if man can defy the law of nature...

[hizuka007]

man can do it if man can defy the law of nature...

law of nature? like what?

[dartzed]

law of nature? like what?

all falls down -gravity-

[Eisen Japhet Larnx]

yeah that's it...

if you jump fr0m a tall building and you d0nt fall d0wn, then it's a miracle...
if you can go back fr0m the past then it's a miracle...

That is defying the law of nature...