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If time travel was ever possible, then why hasn't someone from the future come back to visit us?

Boom Boom
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Joined: Dec 29 2004

I've been dreaming about going back to the early 1960s and patching things up with one of my first loves, and then later buying some MicroSoft stock, and enjoying the Easy Life. Laughing 

 

However, that got me thinking - if time travel ever became possible, then why hasn't someone from the future come back to warn us of impending catastrophe, in an effort to avoid mass loss of life or environmental disaster? Undecided

 

Would it even be ethical? A time traveller would in effect end up playing God and manipulating things and generally just messing up the natural evolution of things.


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anchovy breather
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If time travel was possible, but yet people from our future have never returned to us, maybe it means this going to be a damn hard recession, and maybe climate change will indeed cause our branch in the tree of species to fall off. maybe an astroid is about to hit.  

 

Basically we can assume humans get a fail, no?


Unionist
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M. Spector
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Boom Boom wrote:

...why hasn't someone from the future come back to warn us of impending catastrophe, in an effort to avoid mass loss of life or environmental disaster?

What makes you think we haven't? 


Boom Boom
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Unionist wrote:

I'll let you know yesterday.

 

Laughing


Boom Boom
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M. Spector wrote:
Boom Boom wrote:

...why hasn't someone from the future come back to warn us of impending catastrophe, in an effort to avoid mass loss of life or environmental disaster?

What makes you think we haven't? 

Laughing


Boom Boom
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I guess the idea of time travel has fascinated people for centuries, and movies have been made about the subject - most recently Back To The Future and The Butterfly Effect, and there was a television series not that long ago about someone who jumped back and forth in time although I forget the name of the series. I recall very dimly that the idea of time travel has been pretty well debunked by physicists but their names escape me. So, why the continuing fascination with what is an impossibility?Undecided

Boom Boom
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anchovy breather wrote:

If time travel was possible, but yet people from our future have never returned to us, maybe it means this going to be a damn hard recession, and maybe climate change will indeed cause our branch in the tree of species to fall off. maybe an astroid is about to hit.  

 

That's an interesting idea. That the future has no future, that all things come to a sudden end. I'm picturing in my mind a future time traveller who doesn't realize that the future has an end date, and he sets his time machine to go further than the earth exists - does he simply disappear, or land in exisential limbo? Laughing


anchovy breather
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Maybe we all pine for lost loves, or lost whatever. The woulda, coulda, shouldas.

Boom Boom
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And the movie makers and novelists take advantage of us in the meantime. Money mouth

M. Spector
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Boom Boom wrote:
...there was a television series not that long ago about someone who jumped back and forth in time although I forget the name of the series.

You're thinking of Journeyman, a great series that was killed by the writers' strike.

There's also been time travel in this season's Lost.


Fidel
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Joined: Apr 29 2004

According to theoretical physicist Michio Kaku, it could be possible to travel to parallel universes where, say, your teenaged mother is alive ie. "Back to the Future" sci-fi movies. But she really wouldnt be your mother, she would be future mother of another version of you. Travel at Star Trek warp speed is also possible on paper. The only hitch is that you would probably need the power of the sun to achieve it. And our civilization isnt advanced enough for that. Maybe in a few centuries.


Catchfire
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I think that if time travel were possible, those who had invented it would be no more come back and see us than we would go back and see the pile of goo from which we issued--and those few lame-asses that would go back, we would notice them no more than the goo would notice us.

wage zombie
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Good point Catchfire.

If time travel were possible, in the way that theoretical physicists postulate it, it would be very limited in terms of setting target dates and locations--like it might be possible if one were to find orbiting blackholes ("wormholes").  But the idea of travelling forward or backward in time and arriving at the same physical location is a bit off because the earth is always moving. 


Fidel
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Imagine that our universe is like a fish pond. We can swim left and right, down and up. But light shines only inside our world, which theoretical physicists and string theorists liken to an expanding(or contracting) soap bubble and possibly multiple bubbles. We cant see what's just above our heads and all around us. If black holes pull enormous amounts of matter and light into them, then is our universe the result of what's expelled out at other end? ie. a white hole? In school we were told everything that exists consists of atoms. Apparently that isnt true anymore. Everything we can see and observe is perhaps 5% of all that there is.


martin dufresne
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"This is it!" said the scientist. My time machine is finally ready!" He pressed the button the pressed He "!ready finally is machine time My. scientist the said "!it is This"

(A Jacques Sternberg short short story)


martin dufresne
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"What makes you think we haven't?"

Easy to find out... Did anyone unload a lot of stocks just before 9/11 or Fall 2007?


Papal Bull
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TITOR!

Refuge
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M. Spector wrote:

Boom Boom wrote:
...there was a television series not that long ago about someone who jumped back and forth in time although I forget the name of the series.

You're thinking of Journeyman, a great series that was killed by the writers' strike.

There's also been time travel in this season's Lost.

This is a little bit of time travel but I loved Quantum Leap.

http://en.wikipedia.org/wiki/Quantum_Leap_(TV_series)

Has anyone checked the hospital psychiatirc wards?  Maybe there is someone there who really is from the  future! 

 I know if I time travelled I would keep it to myself in the past.  Maybe when they finally do "invent" time travel hundreds of people will step forward and say "Man, we have been waiting so long to tell you but we knew no one would believe us till now!".


ElizaQ
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Joined: May 27 2005

 I met a guy once who said he came from the future.  It was an amusing conversation. 

  Hmm now that I think of it, he did say the global economy was going to tank.  Hmmm.......

 


Papal Bull
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ElizaQ wrote:

 I met a guy once who said he came from the future.  It was an amusing conversation. 

  Hmm now that I think of it, he did say the global economy was going to tank.  Hmmm.......

 

 

He may have simply been a sarcastic babbler at any point in their life ;)


Boom Boom
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Refuge wrote:
This is a little bit of time travel but I loved Quantum Leap.

http://en.wikipedia.org/wiki/Quantum_Leap_(TV_series)

Has anyone checked the hospital psychiatirc wards?  Maybe there is someone there who really is from the  future! 

 I know if I time travelled I would keep it to myself in the past.  Maybe when they finally do "invent" time travel hundreds of people will step forward and say "Man, we have been waiting so long to tell you but we knew no one would believe us till now!".

Quantum Leap is the series I was thinking of - I don't recall seeing the series that M. Spector mentioned.


Boom Boom
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Refuge wrote:
 I know if I time travelled I would keep it to myself in the past. 

 I was thinking exactly the same thing, because it would be such a fantastic thing. And, it would throw world society into complete chaos if it became common knowledge - there would be mass suspicion about time travellers cheating on lotteries and the stock markets, for instance (see my earlier comment about buying up MicroSoft stock...). There would probably be huge anger if time travellers did nothing to prevent (or warn about) catastrophies from occurring. But physicists tell us this kind of time travel is impossible, so the whole argument is moot. Kiss


martin dufresne
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"physicists tell us this kind of time travel is impossible, so the whole argument is moot"

Hmmm... at one point did they suddenly start trying to convey that message? (TWILIGHT ZONE theme) 


Boom Boom
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Laughing

Fidel
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List of TV series that include time travel

I kinda liked Sliders when it was on. The Terminator is a cult classic now. Arnie said he disliked that movie role and didnt think it would go over very well.


al-Qa'bong
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Joined: Feb 27 2003

I looked through the "Is," but found no mention of "It's About Time," a TV show that was on for a brief time when I was  kid.  The show was about astronauts who break through a time barrier and end up living among cave men.

Opening Theme


wwSwimming
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Joined: May 1 2006

I would attempt to contemplate that, but my head might explode

http://www.youtube.com/watch?v=HY-03vYYAjA

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

http://LASIK-Flap.com ~ Health Warning about LASIK Eye Surgery


Fidel
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Joined: Apr 29 2004

Teleportation, time travel and aliens - a vision of tomorrow today 

Quote:
Time Travel

The Cambridge physicist Professor Stephen Hawking spent much of his career attempting to prove that time travel is impossible. If it were possible, he reasoned, why have we not been visited by voyagers from the future? But he was forced to conclude that there is actually nothing in the laws of physics that prevents moving in time.

"He changed his mind about 10 years ago," said Kaku, "There was no way to ban time travel from happening. So now he says that time travel is possible, but not practical."

The way it might work would be to take a trip through a worm hole connecting one point in space and time with another. The laws of physics suggest that the intense gravity of a black hole is enough to rip the fabric of space and time, making a worm hole possible.

"What we physicists want to do is create our own wormhole so that if you walk through the looking glass you may go backwards in time," said Kaku. Stabilising a black hole would require large amounts of an exotic form of energy called negative energy, thought to be impossible. "But we can now make it in the laboratory," said Kaku.

Quantum theory is a surprisingly large part of modernizing economies, from lasers to computer/electronic components o MRI's. Many politicians think it's a gamble, but some also believe governments should be investing a lot more money in people and high technology.


Spectrum
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Joined: Sep 27 2008

 


So Let's have some Fun(link)

 

Quote:
Now of course, the time travel issues are always quite endearing, because good thinking minds can come up with a imaginative way to travel. What stories are these, that are created?

 



Boom Boom
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Joined: Dec 29 2004
Neat link. I should have mention Contact, probably the best film about time travel ever, although I've never understood how spinning at high speed gets you from here to there.Laughing

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