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View Poll Results: Do you think time travel is possible? | |
Yes, I think so
|     | 9 | 20.93% | |
No, I do not think so
|    | 28 | 65.12% | |
Other
|    | 6 | 13.95% |
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8th September 2004, 07:40 PM
|  | aude sapere...sed praeterea, aude esse
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Reps: 15,076 (power: 28) | | Originally Posted by justaman
Sounds to me like a third party observation error.
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8th September 2004, 07:53 PM
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Reps: 1,267 (power: 13) | | Originally Posted by funyun Sounds to me like a third party observation error.
I'm fairly certain the answer isn't quite as simple as that.
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8th September 2004, 07:55 PM
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Reps: 1,267 (power: 13) | | Originally Posted by Aeschylus The Mozart thing is is not tkaen seriously by any respectable physicists.
*shrugs* I couldn't tell you. It was taken seriously enough by the people who released an international documentary on it. You have to be careful about what you mean by 'speed' and what you actually mean by 'accelartaion', cos quantum mechanics allows you to bend the rules a little, but it is still stricton the fact that no information can be transmitted faster than light.
Which is, I think, the point Nimtz is challenging, so I'm not sure it's a good idea to assume it is axiomatic.
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8th September 2004, 08:04 PM
| | aude sapere...sed praeterea, aude esse
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Reps: 15,076 (power: 28) | | Originally Posted by justaman I'm fairly certain the answer isn't quite as simple as that.
By a third party observation error, I don't mean they looked at it and calculated the speed wrong or something. Instead, I'm talking about the effect I mentioned earlier, which is that, according to relativity, sometimes an observation can be made in which an object appears to be going at or faster than the speed of light, but it is really not.
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“Dangerous? Perhaps. But evil? She acts according to her nature. Is that evil?”
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8th September 2004, 08:08 PM
|  | avid reader
  
| | Join Date: 19th March 2004
Posts: 6,058
Blessings: 116,896
Reps: 9,718 (power: 25) | | | if it were possible.
we would have tourists from the future.
but we dont
therefore it is not possible.....
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i got a warning for flaming.
i find myself unable to participate here as a result.
this being the first of it's kind since i signed into FidoNet 20 years ago.
and am no longer posting to CF.
thanks to everyone who i have encountered over the years i spent here.
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8th September 2004, 08:14 PM
| | acc dictator and tyrant
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Reps: 1,267 (power: 13) | | Originally Posted by funyun By a third party observation error, I don't mean they looked at it and calculated the speed wrong or something. Instead, I'm talking about the effect I mentioned earlier, which is that, according to relativity, sometimes an observation can be made in which an object appears to be going at or faster than the speed of light, but it is really not.
No, I getcha, but you have to realise that the predominant objection is that it is information being passed via this means. No one seems as concerned about arguing whether it is travelling faster than the speed of light rather than if it constitutes information or not. There is obviously a fair amount of detailed QM going on here, at any rate, and the fact that it is an ongoing argument sort of makes me think that it can't just be summed up in one line, if you know what I mean.
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8th September 2004, 08:17 PM
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Reps: 1,267 (power: 13) | | Originally Posted by rmwilliamsll if it were possible.
we would have tourists from the future.
but we dont
therefore it is not possible.....
This isn't necessarily true. If someone were to travel back in time, they would instigate a universe that runs at parallel time with ours. So we might not see any time-travellers at all, they may all be in parallel universes.
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8th September 2004, 08:24 PM
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Reps: 15,076 (power: 28) | | Originally Posted by justaman No, I getcha, but you have to realise that the predominant objection is that it is information being passed via this means. No one seems as concerned about arguing whether it is travelling faster than the speed of light rather than if it constitutes information or not. There is obviously a fair amount of detailed QM going on here, at any rate, and the fact that it is an ongoing argument sort of makes me think that it can't just be summed up in one line, if you know what I mean.
Just because the math and physics of what's going on is complicated doesn't mean the explanation is complicated. Here's the gist (and I emphasize that word) of general relativity: Time is the fourth dimension, and what we feel as gravity is really just the warping of geometrical space-time by matter-energy.
Extremely simple concept when you just lay it out.
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8th September 2004, 08:28 PM
| | aude sapere...sed praeterea, aude esse
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| | Join Date: 15th February 2004
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Reps: 15,076 (power: 28) | | Originally Posted by rmwilliamsll if it were possible.
we would have tourists from the future.
but we dont
therefore it is not possible.....
Incorrect logic, padawan.
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“Dangerous? Perhaps. But evil? She acts according to her nature. Is that evil?”
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8th September 2004, 08:43 PM
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Reps: 7,123,783,041 (power: 0) | | | Ok folks- if time travel were possible what era would you visit............AND do you think you could last 24 hours without being locked up as a lunatic or burned as a witch? | | |
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