Time to answer some questions.

[Delias]

Is time travel possible? Are PCs really better than Macs? What's hiding inside Area 51? Discuss it all in here.

1. Time travel: Theoretically possible, depending on who you ask. More to the point, outside of observation, what would be the purpose of said travel?

2. Are PC's better than Macs?: Yes.

3. What's hiding inside Area 51?: Bill Pullman. and your mom.

[Gnome Rage]

2. Are PC's better than Macs?: Yes.


:)

[diethx]

Is time travel possible? Are PCs really better than Macs? What's hiding inside Area 51? Discuss it all in here.

1. Time travel: Theoretically possible, depending on who you ask. More to the point, outside of observation, what would be the purpose of said travel?

2. Are PC's better than Macs?: Yes.

3. What's hiding inside Area 51?: Bill Pullman. and your mom.

I can think of quite a few things i'd go back and change (or try to change) if time travel were possible!

[RichardCranium]

I can think of quite a few things i'd go back and change (or try to change) if time travel were possible!

The first thing would be my bank account.

[IorakeWarhammer]

I wish I could go back in time and figure out how goddamn magnets work.

[pabstblueribbon]

Time travel is not possible. It is just a theoretic possibility due to mathematical remainders.

In other words, it's only theoretically possible due to our limited understanding of photons and their speed.

Or something. Hell I dunno.

[Sam]

I'm traveling through time right now.

[4a6c1]

AHAHAHAHA SOMEBODY STILL USES YOUR MOM (besides me). That's cool. Super cool. Ok bye.

[peam]

I posted this 50 years from now.

[Back]

I posted this 50 years from now.

I read it fifty years ago.

[diethx]

The first thing would be my bank account.

Inorite.


AHAHAHAHA SOMEBODY STILL USES YOUR MOM (besides me). That's cool. Super cool. Ok bye.

I do too, and it drives Justin up a wall. He sighs, I giggle. We're thuper witty.

[Delias]

Time travel is not possible. It is just a theoretic possibility due to mathematical remainders.

In other words, it's only theoretically possible due to our limited understanding of photons and their speed.

Or something. Hell I dunno.

So... if I am reading this right... time travel is theoretically possible, and you are just talking to hear yourself talk. Or typing to see yourself type, as it were.

I'm not a mathematician but it seems to be that three dimensions make existence possible, and four make movement possible. I mean, if you consider space time and take away either the space or time aspect. Think about it. IT IS GENIUS EVEN IF I CANNOT BACK IT UP MATHEMATICALLY.

[4a6c1]

Picard says time travel is bad mkay

[sst]

I posted this 50 years from now.

Peam, is that Karl Rove as batman?

[Methais]

Picard says time travel is bad mkay

And Doc.

[iJin]

Is time travel possible? Are PCs really better than Macs? What's hiding inside Area 51? Discuss it all in here.

1. Time travel: Theoretically possible, depending on who you ask. More to the point, outside of observation, what would be the purpose of said travel?

2. Are PC's better than Macs?: Yes.

3. What's hiding inside Area 51?: Bill Pullman. and your mom.

1. Fuck no, get the hell away with that shit.

2. Yes and no.

3. My penis.

[Jayvn]

AHAHAHAHA SOMEBODY STILL USES YOUR MOM (besides me). That's cool. Super cool. Ok bye.

I definately still use your mom...

[4a6c1]

Hot Tub Time Machine anyone? Yes. No...sorta? I THINK YES.

[peam]

Peam, is that Karl Rove as batman?

COSTANZA

[diethx]

COSTANZA

I thought so... jerk store...

[Latrinsorm]

Our experience of time is time-like, in that it proceeds linearly and in one direction, while our experience of space is space-like, in that we can freely move at any sort of rate and in either direction. This is expressed in tensor notation with the Minkowski tensor, describing perfectly flat space-time.

However, any gravity will warp the fabric of space-time. This can be expressed with the Schwarzschild tensor, an interesting property of which is that should the radius of the object become less than its Schwarzschild radius it will collapse into a black hole. (The Schwarzschild radius for a spherically symmetrical human is 1E-25 m, or ten thousand times smaller than the "radius" of a proton.) If you look at the equation:

http://upload.wikimedia.org/math/5/5/4/55412d93bf0035d4750bcd71ca734da4.png

...you see that the time coordinate goes negative at r < r sub s (the Schwarzschild radius), and the radial coordinate goes positive at the same time. This means that time becomes space-like and (radial) space becomes time-like. Within the event horizon (r = r sub s) of a black hole, then, we could freely move at any sort of rate and in either direction in time.

Of course we would not survive the trip into a black hole, but what if there was a sort of being that could? Could they simply go back in time to before they entered the black hole and therefore escape? The answer is no: in the same way that our moving left or right has no impact on where we are in time, their moving into the past or future has no impact on where they are in space.

.

TLDR: Time travel in the sense of moving through time at a significantly unusual rate and/or direction is possible in an entirely pointless and unobtainable situation.

[sst]

COSTANZA

ahh I see it now.

[peam]

I thought so... jerk store...

Well, I slept with your husband!

[diethx]

Well, I slept with your husband!

But my husband is in a coma... perv.

[Delias]

Our experience of time is time-like, in that it proceeds linearly and in one direction, while our experience of space is space-like, in that we can freely move at any sort of rate and in either direction. This is expressed in tensor notation with the Minkowski tensor, describing perfectly flat space-time.

However, any gravity will warp the fabric of space-time. This can be expressed with the Schwarzschild tensor, an interesting property of which is that should the radius of the object become less than its Schwarzschild radius it will collapse into a black hole. (The Schwarzschild radius for a spherically symmetrical human is 1E-25 m, or ten thousand times smaller than the "radius" of a proton.) If you look at the equation:

http://upload.wikimedia.org/math/5/5/4/55412d93bf0035d4750bcd71ca734da4.png

...you see that the time coordinate goes negative at r < r sub s (the Schwarzschild radius), and the radial coordinate goes positive at the same time. This means that time becomes space-like and (radial) space becomes time-like. Within the event horizon (r = r sub s) of a black hole, then, we could freely move at any sort of rate and in either direction in time.

Of course we would not survive the trip into a black hole, but what if there was a sort of being that could? Could they simply go back in time to before they entered the black hole and therefore escape? The answer is no: in the same way that our moving left or right has no impact on where we are in time, their moving into the past or future has no impact on where they are in space.

.

TLDR: Time travel in the sense of moving through time at a significantly unusual rate and/or direction is possible in an entirely pointless and unobtainable situation.

I would like to believe you, but television has told me otherwise.

[Gelston]

I'd say to NOT travel through time is impossible, as we are all travelling forward through time.