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As to the impossibility of Alcubierre drive and other warp drives (post by tauristercus): this is an ongoing discussion, and none of the arguments seems final to me, because we still lack a consistent theory of quantum gravity (at least in "public" science). All warp drive designs including Krasnikov tubes are classical in nature, they don't consider any quantum effects. Most opposing claims of impossibility are quantum in nature, they use concepts of Hawking radiation and other effects which have never been observed, let alone measured. And, of course, they formulate them in terms of low-speed quantum mechanics known to us today which still cannot incorporate gravity in any consistent way.
Originally posted by tauristercus
reply to post by veles77
But please don't offer me a seat on the 1st experimental Alcubierre Dive equiped ship ... unless there's complimentary lead underwear provided
Originally posted by gimme_some_truth
Originally posted by tauristercus
Anyway, yeah, that drive just does not work... It is not compatible with reality and as I have been saying all along the theory of relativity forbids going the speed of light or faster... At least now I know there was a thought process behind the drive and not just some national enquirer style BS... if you will.
But yea, Like I said originally I will take Einsteins word over Bob Lazars' any day.. when it comes to relativity that is...
Originally posted by tauristercus
reply to post by veles77
Ok, let me say that I'm a firm believer that if the human mind can conceive of something, even hypothetically and no matter how strange or incredible it may be, then at some point in time (perhaps 100's or 1000's of years away), science will be able to "make it so". I don't believe in "it's impossible and could NEVER be made to work or happen" because NEVER is a looooooonnggggg time ! Today, tomorrow or next year might make the concept impossible to do ... but in a 100 years ... or a 1000 years ... perhaps not quite so impossible after all.
I can concieve of imploding stars to create tailor made black holes ... or allowing one solid object to pass undamaged through another solid object. Both IMPOSSIBLE by todays knowledge but in the future ? I wouldn't be prepared to bet against it becoming reality.
Anyway, the reason for that preamble is that the Acubierre Drive currently is a potential technology that at the moment has many technical obstacles in it's way preventing it from being even a remotely potentially viable solution to FTL or time travel into the future ... for that matter so is worm hole travel into the future as well as event horizon skimming a black hole to get that "boost" into the future.
All the above have some degree or measure of "potentiallity" but all are currently "flawed" and "impossible" because we simply don't have sufficiently "advanced science understanding" to overcome these limitations ... but some where down the track, we WILL gain the necessary science and overcome these limitations.
So, lets not dwell unnecessarily or fixate on just one potential aspect of achieving restricted or unrestricted time travel, and instead return to the original spirit of this thread and examine as many options and possibilities as our imaginations can come up with !
Originally posted by meanmotorscooter
Don't they already have technology that will create miniature black holes? Could that be used to create a worm hole?
Originally posted by meanmotorscooter
Don't they already have technology that will create miniature black holes? Could that be used to create a worm hole?
Originally posted by rsousa
I was thinking about this last night and can we conclude the following:
If we pick that example of 99% of light speed spaceship and slow down until 1.000km/h (which most planes can do), this means when we go by plane from one place to other that we are traveling to the future more than one person than is stooped at the ground during the flight time?
Originally posted by nicvcer
I present a new thought.
So theoretically, the universe splits into other universes based on every possible event that could happen.
So, if you were changing channels on the TV, it is supposed that you could pick any channel, and for every channel there is an alternate universe. Okay, whatever. Theoretically, we could all imagine that.
Now involve time travel. This would mean that not only is there a possibility of different channels, there is a possibility of someone coming from the future OR the past to disrupt the channel changing. Lets say an evil villian were to take a super-bomb back in time that would destroy the entire world. He does this right before the channel is changed. That would then become another possible existence, and would not evolve any channel changing whatsoever.
So what I'm getting at is - if time travel is possible, then tangent universes not only involve what happens in the present, to one second in the future, but it also involves things from the past and the future, making all the possible universe outcomes drastically increase, to the point of Infinity, rather than a determinable amount.