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Darkone101
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15 Jul 2013, 10:53 pm

I've been thinking about both of these topics for some time when a thought came to me.

If we time traveled someone sooner or later would try to stop time travel from being invented (over paradox) and if a butterfly can create storms then even the littlest thing could change history. But what if time travel was in truth traveling to a parallel dimension where time went by in a different peace then our own? Think of all the mysteries it would solve! Who built the pyramids? Kids from a world next to ours where everything is giant. The gods? Magic?



zer0netgain
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16 Jul 2013, 7:07 am

You're describing the basic "out" to time travel paradox.

If time is linear and only one reality, than any attempt to change the past = fail because you were already there to attempt it and failed. That, or you create a paradox that could destroy everything in localized space (i.e., everything reasonably impacted by the paradox).

If parallel dimensions are real, the changing anything is okay because you only bounce into another parallel reality compatible with the events you altered. Of course, that means you still cannot change your own personal reality, and there's the risk that if you change the past, you could never get back to your own present.



ruveyn
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16 Jul 2013, 8:50 am

Backward time travel has never been observed. Forward time travel is easy. Just sit there. and you are going into the future at the speed of light.



Shiresy77
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23 Jul 2013, 9:58 am

Darkone101 wrote:
I've been thinking about both of these topics for some time when a thought came to me.

If we time traveled someone sooner or later would try to stop time travel from being invented (over paradox) and if a butterfly can create storms then even the littlest thing could change history. But what if time travel was in truth traveling to a parallel dimension where time went by in a different peace then our own? Think of all the mysteries it would solve! Who built the pyramids? Kids from a world next to ours where everything is giant. The gods? Magic?



I thought that the Egyptians built the pyramids?



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23 Jul 2013, 11:35 am

Shiresy77 wrote:
I thought that the Egyptians built the pyramids?

Egyptians and/or their slaves. They used bronze cutting tools.

NOVA has an excellent science-based article on Who Built the Pyramids.

Excerpt from "NOVA: Who Built The Pyramids?"

Mark Lehner wrote:
In a NOVA experiment we found that 12 men could pull a one-and-a-half-ton block over a slick surface with great ease. One of the things that most impressed me, though, was the fact that in 21 days, 12 men in bare feet, living out in the Eastern Desert, opened a new quarry in about the time we needed stone for our NOVA Pyramid, and in 21 days they quarried 186 stones. Now, they did it with an iron cable and a winch that pulled the stone away from the quarry wall, and all their tools were iron. But other than that they did it by hand.

So I said, taking just a raw figure, if 12 men in bare feet - they lived in a lean-to shelter, day and night, out there - if they can quarry 186 stones in 21 days, let's do the simple math and see, just in a very raw simplistic calculation, how many men were required to deliver 340 stones a day, which is what you would have to deliver to the Khufu Pyramid to build it in 20 years. And it comes out to between 400 and 500 men. Now, I was bothered by the iron tools, especially the iron winch that pulled the stone away from the quarry walls, so I said, let's put in an additional team of 20 men, so that 12 men become 32, and now let's run the equation. Well, it turns out that even if you give great leeway for the iron tools, all 340 stones could have been quarried in a day by something like 1,200 men. And that's quarried locally at Giza - most of the stone is local stone.

Marl Lehner is an Archeologist at the Oriental Institute of the University of Chicago and Harvard Semitic Museum. He is also an American archaeologist with more than 30 years of experience excavating in Egypt. His approach, as director of Ancient Egypt Research Associates (AERA), is to conduct interdisciplinary archaeological investigation. Every excavated object is examined by specialists to create an overall picture of an archaeological site - from the buildings down to the pollen spores. His international team currently runs the Giza Plateau Mapping Project, excavating and mapping the ancient city of the builders of the Giza pyramid complex, which dates to the fourth dynasty of Egypt. He discovered that Pyramid G1-a, one of the subsidiary pyramids of the Great Pyramid, belonged to Hetepheres I; it was originally thought to belong to Queen Meritites I.


An expert says that Egyptians built the pyramids. Anyone who says otherwise is certainly not an expert on the subject.



Kris30
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23 Jul 2013, 2:13 pm

It is fascinating to contemplate exactly what allowances nature makes for time travel. I know following a prolonged stay in the international space station, a Russian cosmonaut returned to earth 0.2 seconds younger than he would have been had he remained on earth. It sounds pretty unremarkable, but it surely still counts as time travel. So did he actually return to earth 0.2 seconds in the past? And, are the satellites orbiting earth (as a precise measurement at least!) in the past? Obviously the laws of physics dictate that traveling at anything approaching light speed could allow for substantial time differences upon returning to earth, however would nature really open the door for some of the mind boggling paradox's that could result?

Perhaps an other age or parallel universe exist through the event horizon of a black hole? Or maybe a warp-hole to the centre of another galaxy? A suicide mission no doubt, but it's not like we're going to find out anytime soon.



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23 Jul 2013, 2:21 pm

Kris30 wrote:
It is fascinating to contemplate exactly what allowances nature makes for time travel. I know following a prolonged stay in the international space station, a Russian cosmonaut returned to earth 0.2 seconds younger than he would have been had he remained on earth. It sounds pretty unremarkable, but it surely still counts as time travel. So did he actually return to earth 0.2 seconds in the past? And, are the satellites orbiting earth (as a precise measurement at least!) in the past? Obviously the laws of physics dictate that traveling at anything approaching light speed could allow for substantial time differences upon returning to earth, however would nature really open the door for some of the mind boggling paradox's that could result?

Perhaps an other age or parallel universe exist through the event horizon of a black hole? Or maybe a warp-hole to the centre of another galaxy? A suicide mission no doubt, but it's not like we're going to find out anytime soon.


They did not travel to the past, they simply moved forward through time at a slightly slower pace than we did. As far as I know, going back in time is still impossible.



Kris30
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23 Jul 2013, 3:35 pm

They did not travel to the past, they simply moved forward through time at a slightly slower pace than we did. As far as I know, going back in time is still impossible.[/quote]

yea, traveling to the past definitely seems to be more problematic!



ruveyn
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23 Jul 2013, 4:33 pm

If space aliens using tractor beams helped the Egyptians to build the pyramids, then why didn't they teach the egyptian how to mine titanium and iron so they build really slick stuff?



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