[CraigD]

Welcome to hypography, Dario! Please feel free to post a thread by our introductions forum to tell us a bit about yourself.

Dario Padjera, on 19 November 2011 - 08:07 AM, said:

keshav_1983, on 09 July 2005 - 10:10 AM, said:

the nearest star to earth is 4.3 light years away and which has no planets with possible life. the nearest possible life to us is around 20 light years away(approx) this life might not have intelligence comparable to humans.
20 light years that is 20 * 365 * 24 * 60 * 60 * 300,000 kilometers away.
so its very impossible to travel this distance even in a span of thousand life times.

But there must be more types of interstellar travel such as antimatter and thanks to CERN they might be able to make wormholes to go through and go to earth in an instant or go through time itself with it!Or with the now discovery FTL(FasterThanLight)Particle neutrino it's possible to travel faster and go through time itself!!!!!!!

I think most folk here at hypography agree that interstellar travel isn’t in principle impossible, but is certainly hard.

Antimatter is an attractive spacecraft fuel, as its energy density is as high as theoretically possible, but at present, troubled by not occurring in nature in large amounts, and being stupendously expensive to make artificially. The best exploration of this subject I’ve read is the late Robert Forward’s 1995 alternating chapters science fact / science fiction book Indistinguishable From Magic (1st 4 chapters readable at this publisher’s site). Even with antimatter for energy and the most advanced imagined engine designs, though, interstellar travel is still a slow (tens or hundreds of years duration) undertaking.

You’d better fact check your sources about CERN, as to the best of my knowledge, they’ve not made any progress on creating or discovering navigable wormholes. Theoretical explorations of them have been around for decades, such as Kip Thorn’s wonderful 1994 book Black Holes and Time Warps: Einstein's Outrageous Legacy, but since Thorn, Hawking, and Carl Sagan’s brainstorming of the idea (you may recall that navigable wormholes were at the heart of Sagan’s 1985 science fiction novel Contact, which made it to film in 1997 – he turned to Thorn for help in keeping his story scientifically reasonable), I’ve seen little serious work on the subject.

If the famous CERN/OPERA neutrinos actually are faster than light (which is far from certain yet), they do, in principle, permit communicating backward in time. The engineering involved in actually doing this, assuming you have some FTL signal to do it with, is so hard, it pretty much implies getting between stars in tens or hundreds of years will already be an accomplished technology. I think my own humble post, and several others sharing its thread, are pretty good ones on the subject.

[maddog]

kyle8921, on 02 July 2005 - 06:54 PM, said:

I think it makes perfect sense!

I don't know whether it makes any kind of sense or need to. I do like this as a story and I would read the novel were it written.
Trying to fit this into the paradigm of "reality" as like the way things are.... etc is more in line with debating how many devils
that dance on the head of a pin! Pointless. So to go down that track accept Boerseun's statement and move on.

I do remember growing up after having watched some stupid b-movie about space aliens and considered what if they
came from our future. As a story it is great. Write it. I will read it. Just my 2 cent.

Dabo, on 24 August 2006 - 08:32 AM, said:

I skimmed this long thread, and didn't see any mention of the book, The Man Who Folded Himself....
Forgot the author... Very interesting look at the logistics of time travel, though very weird.... Anybody read that??

The author is David Gerrold (of "Trouble with Tribbles" fame). He is one of my favorite authors and yes, I loved this book!
He actually has a couple of good time travel books. Another (I think) is "Thrice upon a time" (or something like that). This
one is about communicating with the future. It was a really good book also.

maddog

[bolle_genije]

I think that we will prove in future that time is constant, we could perceive it as slowing or speeding (and looking at that as time travel- need proofing), but time is to an objective observer constant. So no time traveling! But i agree that in future will be possible to travel with speed of light or faster, or had no speed but bend space or some other mean of traveling.

[Aman Shah]

No,this type of time machine in which alien / Persion can participate seems impossible.

This post has been edited by Aman Shah: 09 April 2012 - 10:15 AM

[7DSUSYstrings]

This assumes there actually are humans on this planet in the future. What if we all did get a very unwelcome surprize this December? (I don't believe that will happen, but nothing is impossible.) It would make no sense to send ourselves back from the future to a world ready to go bananas.