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>> ^Fade:

Nothing in the laws of physics...except that you can't physically travel through time, yes.
Time is only this moment. There is no future or past to travel to.


Not according to some elements of General Relativity. Meaning, some would have it that the past, future and present have all already happened and just exist in a different dimension, call it the Z' axis. When Kurt Gödel wasn't destroying the foundations of logical positivism, he devised a time travel tabulation called the Gödel metric which allowed for curves in space time that one might be able to use some variant of what we all know as time travel. It is all theory, of course, and most of the theoretical methods for invoking time travel require a device of infinite size, or arranging matter in such a way as to destroy your time travel machine as it becomes a singularity...oops. Time is hardly understood really. We don't really know what it is when we talk about time, and by we, I mean everyone! Is time a particle, is it a matter or energy of sorts, is it conserved, how is it created if it is a substance of a sort? Is the apparent nature of moments of time in our minds indicative to "it's" nature, or just an arrangements of information in our mind...could some other mind have a very different idea of time? If so, how real is our notion of time, as it would appear that forward moving time would not be objectively real in that case. The debate on time travel, as far as I can see, isn't over...but mostly because we don't even know what time actually is! </rant of one of my favorite subjects!>

Time to go eat...

Edit (wanted to add that some hold that rats memorize events in reverse! What I mean is when they go through a maze, they remember coming out of the maze first, and going in last! AMAZINGLY DIFFERENT WORLD! As such, a rat has a much, much different idea of the "flow" of time as a forward flow of moments, his time jumps from now, to the then that was near to the then that was far and back to the "now" which will become another then that was near, then a then that was far...a jambalaya that we would have no idea how to make since of lineally, but it works so well for rats that they are one of natures most sucessfull pests.)

Time travel might still be out of the question though, even with faster than light neutrinos:

http://blogs.discovermagazine.com/cosmicvariance/2011/09/24/can-neutrinos-kill-their-own-grandfathers/

Tags for this video have been changed from 'listen, to your, ancestors, 7up' to 'listen, to your, ancestors, 7up, time travel' - edited by Zifnab

Tags for this video have been changed from 'delorean, time travel, back to the future, garbarino' to 'delorean, time travel, back to the future, garbarino, christopher lloyd, doc brown' - edited by xxovercastxx

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>> ^brycewi19:

>> ^coolhund:
Im also still wondering why Americans always need to know first which month or year it is instead of the day.

That's because it all depends on how you say the date. Do you say the twenty-third of August? Or do you say August twenty-third. You usually write it out in order of how you normally say it.
Americans, in general, say the latter.
And I don't think it sounds funny at all.


I am talking about the date format. 12/24/11 or 11/12/24.
Why would you write it that way unless youre accounting for all the time travelers that want to know the year or month first...

In reply to this comment by chicchorea:
No, it is a common mispractice though.

Properly, a second to the invocation by one with the necessary status, gold star or better, will result in the votes being transferred to the original thus preserving them.
In reply to this comment by Barseps:
In reply to this comment by Barseps:
In reply to this comment by chicchorea:
Very sorry, but he is correct, *dupeof=http://videosift.com/video/The-Nazi-Time-Traveler


Ok, fair comment. I honestly didn't know.


Do I wait for siftbot to delete it or do I do it?



Ok dude thanks for your help, I'm still "feeling my way" around the site & it's practices if you know what I mean :-)

In reply to this comment by chicchorea:
Very sorry, but he is correct, *dupeof=http://videosift.com/video/The-Nazi-Time-Traveler


Ok, fair comment. I honestly didn't know.

This video has been nominated as a duplicate of this video by chicchorea. If this nomination is seconded with *isdupe, the video will be killed and its votes transferred to the original.

Very sorry, but he is correct, *dupeof=http://videosift.com/video/The-Nazi-Time-Traveler

Very interesting piece of cinematography but unfortunately a *dupeof http://videosift.com/video/The-Nazi-Time-Traveler

Comment hidden because you are ignoring dag. (show it anyway)

Yes! And when you can stitch together everyone's camera view, you've invented virtual time travel - with the ability to view anything at any time.>> ^gwiz665:

Even more incredible, the automatic face tracking and tagging, will make it possible to follow someones life entirely in 3rd person from everyone else's camera, with only few outages where you can alwaysgo into 1st person.
>> ^dag:
Lifecasting will become the default. We'll all wear pendant cameras around our neck at all times. Nothing will go unrecorded, but we'll share the good parts. How many terabytes would be required to store 80 years of life at say 720P?>> ^deathcow:
With the advent of cheap quality cams, infinite storage, etc. It probably wont be long before car insurance requires little cams around all car corners. Liability will be as simple as reviewing the footage from all cars nearby.

I've always wondered if you would not just pop up in the middle of empty space if you time travelled without compensating for the fact that the earth is moving through at what like 1500 M/s through the solar system? And the solar system is orbiting the galactic centre. And the galaxy is moving away from all other galaxies (or vice-versa) as spacetime itself apparently expands. It all depends on how you think about frame of reference WRT your model of time-travel.

Like in Back to the Future, they travelled 30 years at a time. And they appeared to "portal/shunt" as opposed to "tunnel". It seems to me on a gut level like a portal or shunt would probably just dump you into empty space a fraction of a light year behind or ahead of the solar system if you jumped 30 years. A wormhole (Doctor Who or Bill and Ted style) is easier to imagine as being connected to the same "place" (according to what frame of reference I can't mentally peg down) in both times.

>> ^MichaelL: