I thought that you could only travel back in time as far as when time travrl was first invented?

I see no technical reason why this couldn't be so. I think that's a man-made rule, and we all know not everyone follows man-made rules.

---

I thought that you could only travel back in time as far as when time travrl was first invented?

Amazingly enough, you can actually travel back before time began as we know it (i.e. Big Bang). Granted there's not much to see and it's kinda dark.

---

Hopefully the cosmos is not trying to reverse the charges.
Moderation in all things.

It would be interesting and fun to watch that happen. you could set your machine to travel forward from there at the rate of one year per second, it would be a neat show.

---

What you do today you will have to live with tonight

It would be interesting and fun to watch that happen. you could set your machine to travel forward from there at the rate of one year per second, it would be a neat show.

I'm probably out of my depth here but here goes.

There are 3 universe theories

1. Steady state
2. Big bang
3. Oscillating

Surely your premise would only hold true for the oscillating theory?

The premise holds true for the Big Bang theory also in that time has a starting point. The Oscillating theory is a kind of continuous loop. Only in Steady State is there no start or end.

---

Hopefully the cosmos is not trying to reverse the charges.
Moderation in all things.

It would be interesting and fun to watch that happen. you could set your machine to travel forward from there at the rate of one year per second, it would be a neat show.

I'm probably out of my depth here but here goes.

There are 3 universe theories

1. Steady state
2. Big bang
3. Oscillating

Surely your premise would only hold true for the oscillating theory?

The premise holds true for the Big Bang theory also in that time has a starting point. The Oscillating theory is a kind of continuous loop. Only in Steady State is there no start or end.

Er um.....

I thought the bang bang theory was everything out of nothing? Therefore how go you go back to nothing?

Even nothing is something.

---

Hopefully the cosmos is not trying to reverse the charges.
Moderation in all things.

. . . anybOdy EvEr dO thE taChyOn flOat {_?_}

. . . If: as in yOu 'avE - rEMEMbEr tO strOkE 'baCksidE' dOwn



1. POsitiOn yOur hands a fEw inchEs abOve thE fly as if yOu wErE abOut to clap.
2. Clap.
3. Wash hands thOrOughly . . .

. . . thEn, attEMpt tO rEMEMbEr whEn yOu last wEnt swIMmIn'

---

BOINC Wiki . . .

Science Status Page . . .

. . . anybOdy EvEr dO thE taChyOn flOat {_?_}

. . . If: as in yOu 'avE - rEMEMbEr tO strOkE 'baCksidE' dOwn



1. POsitiOn yOur hands a fEw inchEs abOve thE fly as if yOu wErE abOut to clap.
2. Clap.
3. Wash hands thOrOughly . . .

. . . thEn, attEMpt tO rEMEMbEr whEn yOu last wEnt swIMmIn'

It would need a slip stream, maybe.

---

With each crime and every kindness we birth our future.

Sorry, we crossed posts!

Never cross the posts. It would be very bad.

---

Hopefully the cosmos is not trying to reverse the charges.
Moderation in all things.

@ Chris - 'ErE's soME cuppa JAVA = rEally dark EsprEssO tEa (frOM thE futurE) ;>] - 4 U

. . . tO COntinuE nOw - gOd-dOEs-nOt-play-diCE

---

BOINC Wiki . . .

Science Status Page . . .

just dOn't fOrgEt thE Microsoft UPDATE: August 2007 cumulative time zone update for Microsoft Windows operating systems

=========================== = slipstrEaM . . .

---

BOINC Wiki . . .

Science Status Page . . .

@ Chris - 'ErE's soME cuppa JAVA = rEally dark EsprEssO tEa (frOM thE futurE) ;>] - 4 U

. . . tO COntinuE nOw - gOd-dOEs-nOt-play-diCE

God does indeed play dice and he throws them where we can't see.

---

Hopefully the cosmos is not trying to reverse the charges.
Moderation in all things.

just dOn't fOrgEt thE Microsoft UPDATE: August 2007 cumulative time zone update for Microsoft Windows operating systems

=========================== = slipstrEaM . . .

The velocity is lightlike or higher. The only reason that we think the speed of light is the upper limit is because that's as fast as we can see.

---

Hopefully the cosmos is not trying to reverse the charges.
Moderation in all things.

@ Chris - 'ErE's soME cuppa JAVA = rEally dark EsprEssO tEa (frOM thE futurE) ;>] - 4 U

. . . tO COntinuE nOw - gOd-dOEs-nOt-play-diCE

God does indeed play dice and he throws them where we can't see.

. . . and hEnCE thE rEasOn for "it is still bEing 'wOrkEd' Out . . ." ;>)

---

BOINC Wiki . . .

Science Status Page . . .

The velocity is lightlike or higher. The only reason that we think the speed of light is the upper limit is because that's as fast as we can see.

Ah! now that is an interesting comment. Way way back when I first came on these boards, I asked my mate Esme whay the speed of light was exactly 186,000 miles/sec. Why wasn't it 190,000 or 180,000? She asked the Science boards and they said it had to be the speed it was else the universe as we knew it wouldn't exist.

Hmmmmm

In 2001, researchers even made the light stop

---

Account frozen...

I'd still love to hear it. 8-)

Keep in mind that Douglas Adams teaches us that nothing is impossible, just highly improbable.

OK, here goes (be warned, it's a bit long-winded):

WHY Time Travel is Impossible In This Universe:

So, we all know that 'space' & 'time' are merely aspects of the same
beast, called (imaginatively enough) 'Spacetime' yes?
i.e. that 'Time' is merely another 'direction', to go along with the 'x', 'y', and 'z' directions in 'Space'.

So, you'd think that travel in 'Time' would be possible, right?
*But it isn't*, and here's why, without any need to invoke higher math, discussions of 'flying through a Black Hole', or need to invoke that implacable enemy of all Life, Entropy....

If you wish to travel from Point A to Point B, you need to know where
Point B is, or, in the case of long-distance travel in 'Outer Space',
where Point B *is going to be* when your slow-ass 'Spaceship' finally
gets there.

E.g., if we wish to send a probe to Mars, which currently takes about 18 months, we have to aim it at the location that Mars will be in in about 18 months.

Now, let's assume that we wish to re-visit USCF to watch the first World Series game in October 2005...
(In my defence, Your Honour, I AM a Sox fan)

To travel through 'Time', we need to build a 'Timeship' that is able to do three distinct things; so here are the easy two to start off with:

1) our 'Timeship' must be able to move through 'Time' to any point in 'history', from any other point in 'history' - which is, as any fule kno, a doddle;

2) our 'Timeship' must also be capable of instantaneous, faster-than-light travel to any point in 'Space' from any other point in 'Space' - which is also, clearly, the merest bagatuelle;

3) once we have got over the relatively simple bits above we *still* have to be able to aim our 'Time Ship' at the exact point in physical 'Space' where USCF *was* on the night of the first World Series game that October, and it is at this point where it all gets 'a bit tricky'....

Now, OK, we all know that the Earth is spinning, and how fast it spins, so we can calculate where our 'Timeship' will have to 'rematerialise' relative to its 'launch point' on the Earth's surface;

We also know that it is orbiting the Sun, and how fast it's doing that, so we can calculate where the 'Timeship' will have to 'rematerialise' relative to its 'launch point' within the Solar System;

We also know how fast our Solar System is moving around the centre of our Galaxy, and how fast it's doing that, so we can calculate where the 'Timeship' will have to 'rematerialise' relative to its 'launch point' within the Galaxy;

And we can measure the velocity of our Glaxy relative to the rest of the Universe, so we can calculate where the 'Timeship' will have to 'rematerialise' relative to its 'launch point' within this Universe (yay!);

BUT:
We have NO way of determining whether (or not) the Universe *as a whole* is rotating (although, given that everything in it is rotating, this does seems likely), or at what speed it is rotating, OR whether it is moving relative to whatever (if anything) is outside of our Universe, or at what speed it is doing that.

SO:
Even IF we COULD complete tasks 1) and 2), we would *still* be unable to travel in 'Time', because we would have no way of knowing where our 'Timeship' would 'rematerialise' - it could end up in the heart of the Sun, in a different galaxy, within the Event Horizon of a Black Hole, or even outside the boundaries of this Universe.

*Who* the Vorsprung dürch Technik is going to fund the construction of a hugely-expensive engineering project that will very likely be rendered non-recoverable by its first launch?

HOW would you develop it? - there'd be NO way of knowing whether or not the technology actually worked.

I therefore assert that Time Travel is impossible for humans (or anyone else) in this Universe.

Evidence that incontrovertibly supports my assertion that Time Travel is Impossible for humans in this Universe:

If I'm wrong, and Time travel IS possible - WHERE then are all the Tourists from the Future?

You'd maybe expect them to come looking for notable world events, wouldn't you?

The 20th Century was one of unparalleled global turmoil and change, AND Shoemaker-Levy 9 put on a spectacular show when it hit Jupiter.
Who *wouldn't* want to go watch the first Moon Landings?

And yet, no tourists from the future have showed up - so I say that this is because there ARE none.

N.B. - I am NOT saying here that travel to earlier times in parallel
Universes that are similar to our own is impossible, just time travel within this one.
(This would also remove the 'Grandfather paradox', because it wouldn't be *your* Grandfather that you killed, if you were in a Parallel Universe.)

---

Veni, Vidi, Bibi.

All this looks like back from the future

---

It's good to be back amongst friends and colleagues

186,272, actually.
Perhaps with some stuff following the decimal point.
The answer Chris mentioned is that whole "this is just right for the porridge" theory. "Three Bears," anybody?

---

Capitalize on this good fortune, one word can bring you round ... changes.

Its not fair - its not even tea time yet and my brain hurts.

Take three deep breaths and then a stiff shot that should do the trick.

---

What you do today you will have to live with tonight

I'd still love to hear it. 8-)

Keep in mind that Douglas Adams teaches us that nothing is impossible, just highly improbable.

OK, here goes (be warned, it's a bit long-winded):

WHY Time Travel is Impossible In This Universe:

So, we all know that 'space' & 'time' are merely aspects of the same
beast, called (imaginatively enough) 'Spacetime' yes?
i.e. that 'Time' is merely another 'direction', to go along with the 'x', 'y', and 'z' directions in 'Space'.

So, you'd think that travel in 'Time' would be possible, right?
*But it isn't*, and here's why, without any need to invoke higher math, discussions of 'flying through a Black Hole', or need to invoke that implacable enemy of all Life, Entropy....

If you wish to travel from Point A to Point B, you need to know where
Point B is, or, in the case of long-distance travel in 'Outer Space',
where Point B *is going to be* when your slow-ass 'Spaceship' finally
gets there.

E.g., if we wish to send a probe to Mars, which currently takes about 18 months, we have to aim it at the location that Mars will be in in about 18 months.

Now, let's assume that we wish to re-visit USCF to watch the first World Series game in October 2005...
(In my defence, Your Honour, I AM a Sox fan)

To travel through 'Time', we need to build a 'Timeship' that is able to do three distinct things; so here are the easy two to start off with:

1) our 'Timeship' must be able to move through 'Time' to any point in 'history', from any other point in 'history' - which is, as any fule kno, a doddle;

2) our 'Timeship' must also be capable of instantaneous, faster-than-light travel to any point in 'Space' from any other point in 'Space' - which is also, clearly, the merest bagatuelle;

3) once we have got over the relatively simple bits above we *still* have to be able to aim our 'Time Ship' at the exact point in physical 'Space' where USCF *was* on the night of the first World Series game that October, and it is at this point where it all gets 'a bit tricky'....

Now, OK, we all know that the Earth is spinning, and how fast it spins, so we can calculate where our 'Timeship' will have to 'rematerialise' relative to its 'launch point' on the Earth's surface;

We also know that it is orbiting the Sun, and how fast it's doing that, so we can calculate where the 'Timeship' will have to 'rematerialise' relative to its 'launch point' within the Solar System;

We also know how fast our Solar System is moving around the centre of our Galaxy, and how fast it's doing that, so we can calculate where the 'Timeship' will have to 'rematerialise' relative to its 'launch point' within the Galaxy;

And we can measure the velocity of our Glaxy relative to the rest of the Universe, so we can calculate where the 'Timeship' will have to 'rematerialise' relative to its 'launch point' within this Universe (yay!);

BUT:
We have NO way of determining whether (or not) the Universe *as a whole* is rotating (although, given that everything in it is rotating, this does seems likely), or at what speed it is rotating, OR whether it is moving relative to whatever (if anything) is outside of our Universe, or at what speed it is doing that.

SO:
Even IF we COULD complete tasks 1) and 2), we would *still* be unable to travel in 'Time', because we would have no way of knowing where our 'Timeship' would 'rematerialise' - it could end up in the heart of the Sun, in a different galaxy, within the Event Horizon of a Black Hole, or even outside the boundaries of this Universe.

*Who* the Vorsprung dürch Technik is going to fund the construction of a hugely-expensive engineering project that will very likely be rendered non-recoverable by its first launch?

HOW would you develop it? - there'd be NO way of knowing whether or not the technology actually worked.

I therefore assert that Time Travel is impossible for humans (or anyone else) in this Universe.

Evidence that incontrovertibly supports my assertion that Time Travel is Impossible for humans in this Universe:

If I'm wrong, and Time travel IS possible - WHERE then are all the Tourists from the Future?

You'd maybe expect them to come looking for notable world events, wouldn't you?

The 20th Century was one of unparalleled global turmoil and change, AND Shoemaker-Levy 9 put on a spectacular show when it hit Jupiter.
Who *wouldn't* want to go watch the first Moon Landings?

And yet, no tourists from the future have showed up - so I say that this is because there ARE none.

N.B. - I am NOT saying here that travel to earlier times in parallel
Universes that are similar to our own is impossible, just time travel within this one.
(This would also remove the 'Grandfather paradox', because it wouldn't be *your* Grandfather that you killed, if you were in a Parallel Universe.)

We might be seeing tourists from the future every day. They, of course, would blend in and avoid any interaction with us. It could very well be that UFO sightings are actually time ships from the future. Maybe the changes in the 20th century were caused by time travelers.

The whole Grandfather Paradox is false because you would have to kill your grandfather before you were born. Having killed your grandfather, you would cease to exist and could therefore never travel back in time to kill your grandfather.

If we can travel through space, we should be able to travel through time. Remember, we have only been flying through the air for 100 years and we breached the atmosphere a mere 50 years ago. It's a little too early to call in the verdict on time travel.

---

Hopefully the cosmos is not trying to reverse the charges.
Moderation in all things.

I'd still love to hear it. 8-)

Keep in mind that Douglas Adams teaches us that nothing is impossible, just highly improbable.

OK, here goes (be warned, it's a bit long-winded):

WHY Time Travel is Impossible In This Universe:

So, we all know that 'space' & 'time' are merely aspects of the same
beast, called (imaginatively enough) 'Spacetime' yes?
i.e. that 'Time' is merely another 'direction', to go along with the 'x', 'y', and 'z' directions in 'Space'.

So, you'd think that travel in 'Time' would be possible, right?
*But it isn't*, and here's why, without any need to invoke higher math, discussions of 'flying through a Black Hole', or need to invoke that implacable enemy of all Life, Entropy....

If you wish to travel from Point A to Point B, you need to know where
Point B is, or, in the case of long-distance travel in 'Outer Space',
where Point B *is going to be* when your slow-ass 'Spaceship' finally
gets there.

E.g., if we wish to send a probe to Mars, which currently takes about 18 months, we have to aim it at the location that Mars will be in in about 18 months.

Now, let's assume that we wish to re-visit USCF to watch the first World Series game in October 2005...
(In my defence, Your Honour, I AM a Sox fan)

To travel through 'Time', we need to build a 'Timeship' that is able to do three distinct things; so here are the easy two to start off with:

1) our 'Timeship' must be able to move through 'Time' to any point in 'history', from any other point in 'history' - which is, as any fule kno, a doddle;

2) our 'Timeship' must also be capable of instantaneous, faster-than-light travel to any point in 'Space' from any other point in 'Space' - which is also, clearly, the merest bagatuelle;

3) once we have got over the relatively simple bits above we *still* have to be able to aim our 'Time Ship' at the exact point in physical 'Space' where USCF *was* on the night of the first World Series game that October, and it is at this point where it all gets 'a bit tricky'....

Now, OK, we all know that the Earth is spinning, and how fast it spins, so we can calculate where our 'Timeship' will have to 'rematerialise' relative to its 'launch point' on the Earth's surface;

We also know that it is orbiting the Sun, and how fast it's doing that, so we can calculate where the 'Timeship' will have to 'rematerialise' relative to its 'launch point' within the Solar System;

We also know how fast our Solar System is moving around the centre of our Galaxy, and how fast it's doing that, so we can calculate where the 'Timeship' will have to 'rematerialise' relative to its 'launch point' within the Galaxy;

And we can measure the velocity of our Glaxy relative to the rest of the Universe, so we can calculate where the 'Timeship' will have to 'rematerialise' relative to its 'launch point' within this Universe (yay!);

BUT:
We have NO way of determining whether (or not) the Universe *as a whole* is rotating (although, given that everything in it is rotating, this does seems likely), or at what speed it is rotating, OR whether it is moving relative to whatever (if anything) is outside of our Universe, or at what speed it is doing that.

SO:
Even IF we COULD complete tasks 1) and 2), we would *still* be unable to travel in 'Time', because we would have no way of knowing where our 'Timeship' would 'rematerialise' - it could end up in the heart of the Sun, in a different galaxy, within the Event Horizon of a Black Hole, or even outside the boundaries of this Universe.

*Who* the Vorsprung dürch Technik is going to fund the construction of a hugely-expensive engineering project that will very likely be rendered non-recoverable by its first launch?

HOW would you develop it? - there'd be NO way of knowing whether or not the technology actually worked.

I therefore assert that Time Travel is impossible for humans (or anyone else) in this Universe.

Evidence that incontrovertibly supports my assertion that Time Travel is Impossible for humans in this Universe:

If I'm wrong, and Time travel IS possible - WHERE then are all the Tourists from the Future?

You'd maybe expect them to come looking for notable world events, wouldn't you?

The 20th Century was one of unparalleled global turmoil and change, AND Shoemaker-Levy 9 put on a spectacular show when it hit Jupiter.
Who *wouldn't* want to go watch the first Moon Landings?

And yet, no tourists from the future have showed up - so I say that this is because there ARE none.

N.B. - I am NOT saying here that travel to earlier times in parallel
Universes that are similar to our own is impossible, just time travel within this one.
(This would also remove the 'Grandfather paradox', because it wouldn't be *your* Grandfather that you killed, if you were in a Parallel Universe.)

We might be seeing tourists from the future every day. They, of course, would blend in and avoid any interaction with us. It could very well be that UFO sightings are actually time ships from the future. Maybe the changes in the 20th century were caused by time travelers.

The whole Grandfather Paradox is false because you would have to kill your grandfather before you were born. Having killed your grandfather, you would cease to exist and could therefore never travel back in time to kill your grandfather.

If we can travel through space, we should be able to travel through time. Remember, we have only been flying through the air for 100 years and we breached the atmosphere a mere 50 years ago. It's a little too early to call in the verdict on time travel.

HIP HIP and Cheerio!!

---

What you do today you will have to live with tonight