Then altering the future! How long takes your alteration, same question in which time? How would a person living in the present perceive your alteration that you make in the past, for example when he become extinct. Is he suddenly away, or perceives he a change? But then not in the normal time but in the second time? If you kill yourself, cant you then return into your original time?
bo198214 wrote:[...]You see, these scenarios - as often illustrated in films - are nonsense. The only noncontradictive possibility I can see is those of parallel worlds. Each event, having possibly different consequences, forks the world into parallel worlds, each with one of the consequences realized respectively.
You can then look back and see in a parallel world what an alternative decision made by you had resulted in. And there is a parallel world for each decisions/possibility of anyone and anything. On the other hand, you are then a kind of multiple personality - you in every parallel world. Maybe even this model is contradictive.
quickfur wrote:Now how would you travel back in time? If you travel back to time A and appear somewhere, you have now introduced a new event at time A, which contradicts the initial conditions.
Suppose you did something at time A that changes the course of history, such that time machines will never be invented.
But now that I think about it... maybe this is what is happening at the quantum-mechanical level in vacuum, where things pop in and out of existence within the allowed Planck unit of time.
bo198214 wrote:quickfur wrote:But now that I think about it... maybe this is what is happening at the quantum-mechanical level in vacuum, where things pop in and out of existence within the allowed Planck unit of time.
Yeah, I am always fascinated that in this microscopic world there is no entropy, it seems as if entropy is merely introduced by statistics. Any arguments against or for this point? (Has also to do with direction of time ... :? )
faranya wrote:Alright, we talked about the going back stuff, now what about the idea of stopping time for everything but you? I know it's a fictional idea, but still, how would things change if you stopped time for everything but you? Would you be able to draw in air? If you threw something, how long would it move for? Could you even move it? Wouldn't the air create huge amounts of friction if you tried to move through it? Sorry about all the questions, but you seem to know some "answers" to them
also look up "time contraction" that's the other pole to "time dilation"
take einstein for exemple, who was not so much of a mathematician or physicist as he was a historian of his chosen disciplines, taking 9 years to synthetize all the bits and pieces he digged from then-obscure literature into his theory - his seeing of the state of affairs in those domains.
look up ENDOPHYSICS on the web, and please finally include yourself in your world-picture.
In particular, research focused on mathematical models of the observer and of their interactions with the universe.
moonlord wrote:I think this is as when the same thing jet car pilots said time seems to slow down when they ride. 1100 km/h is way below light speed, so I don't see any relativistic coming in (it would speed up time for the pilot, anyway)...
Sorry, PWrong, I asked you for a definition of a time machine and am still waiting. (I think a time machine isnt consistently definable, and in that direction I wanted to point with my examples.)
jinydu wrote: it is the logical conclusion of centuries of science
moonlord wrote:I've just seen 'The Butterfly Effect' movie last night and seemed a plausible way of dealing with time travel, however only to a limited extent. What do you think?
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