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Old 16th July 2004, 11:26 PM   #11
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I think time travel is overated. I'm always exhausted when I return to the present.
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Old 16th July 2004, 11:49 PM   #12
brsanko is offline brsanko  United States
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Default Blah Blah Blah

When it comes to higher physics science fiction is really a redundancy. It all made up any way. What scientists try to pass off as scientific facts are mearly someones off the wall ideas that nobody has been able to disprove. A thousand years from now the "big bang" will be as laughable as a flat earth is to us today.
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Old 17th July 2004, 12:59 AM   #13
tiroth is offline tiroth  United States
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Quote:
Originally posted by RHosch
The physical laws of our universe do not appear to forbid time travel
They do, as we understand them, for objects which have mass. At least time travel backwards that is.
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Old 17th July 2004, 05:52 AM   #14
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Default Re: Blah Blah Blah

Quote:
Originally posted by brsanko
When it comes to higher physics science fiction is really a redundancy. It all made up any way. What scientists try to pass off as scientific facts are mearly someones off the wall ideas that nobody has been able to disprove. A thousand years from now the "big bang" will be as laughable as a flat earth is to us today.

NO, quantum (and other small scale) physics are based on physical data gathered from repeatable experiments. The theoretical relationships fit the data quite well. Smaller still, however, such as string theory, isn't going to be proven or disproven any time soon as I gather it.

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Old 17th July 2004, 02:28 PM   #15
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Default Re: Re: Time Travel....a concern not really mentioned

Quote:
Originally posted by Schaef
The two people traveled backwards in time to witness the big bang

the theoritical problem with such a proposition is that while time travel is possible under the existing laws of physics, we have no ideal about the laws of physics right after the big bang (within the first 0.001s I think) and right after that the universe was extremely simple (and well understood). so there are at least two problems:

1) is time travel possible in that period of time about which we have no idea?
2) how would the universe in its early years react to two bodies from the past?

the concept of time travel is certainly very appealing. I am just not sure how doable it is in the real world.

especially when we have to PCB kits for it,
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