bigdawg81192 said:
...But now Im wondering....
How do you say "I" and "a" in pig latin?
Normally, you take the first letter of the word, add the suffix "-ay" to it, and then place it at the END of the word...
Words like that you don't apply the rule to. They are simply "I" and "a".
Time stops everything from happening at once.
-
John Wheeler
Time certainly exists, no matter what you call it. Time is what differentiates between the sun and a supernova.
maca2kx said:
Tank, you're talking about a one dimensional universe with the line analogy. Two dimensions mean you can walk forwards-backwards and left-right but there is no up-down.
Isn't the third dimension depth, therefore rendering a two dimensional world like, say, Mario on the NES? You have both vertical and horizontal movement, but no depth to either of them. Let's say you're Mario. Your vision would be, for the sake of argument assuming we could quantify our perception of vision to a two dimensional situation, a vertical line in front of you. You can jump up and down, and move foreward and back (your field of vision would have to be along one of the axis; Mario cannot stand in his world and look at you, playing the game.
I think this has been mostly said, the line is all you can see, but not because everything is the same distance because of lack of depth, there
is still a horizontal and vertical axis, but you can't perceive what that line is, in terms of what we'd define as seeing that line is. It is a line, made up of colors of the objects in front of you, be they Bowser, blocks, coins, or mushrooms, but you don't know what they are because they are simply different lengths and colors of the same line.
(Actually, there shouldn't even be a line, because that would suggest some measure of depth (a thickness to the line) which is impossible.)
Think of a sheet of paper. That's about as close as we can get to a two dimensional object existing in a three dimensional world. It has a clear height and length, but it's depth is near non-existent. But there is still depth. For there to be no depth, the sheet would have to disappear when rotated 90 degrees on either axis. Surely that is not possible, because the paper cannot disappear, not exist, on that plane, but exist on the other two.
Kinda sorta make sense?
A point only "exists" on paper in our three dimensional world. There cannot be a single point hanging freely, suspended in midair. That would mean from any angle it can be viewed, from any axis, meaning it has to "exist" in all of the axis, dimensions, to be seen. We cannot "see" a two dimensional object exist in our three dimensional world (other than theoretically on paper) just as a two dimensional being cannot "see" a three dimensional object.
The fourth dimension we are quite aware of, are we not? Time. A fourth dimensional being can "see" through time, past, present and future (maybe). That's my understanding anyway. I think I may be a bit foggy on that though, my knowledge on other dimensions is...sparse, lol.
Time travel is certainly possible; look at Fry in Futurama. Now, if you wanted to get into going
back through time, that's a whole other story. For the time travel we are capable of today (I call it "cold time travel" as it would require us to br frozen to 0 zero degrees Kelvin, and then thawed at some point in the future) theoretically we could travel thousands, millions of years into the future, provided there is a world to be thawed in, and someone to unthaw you. To the one being frozen, the travel through time is instantaneous.
My view on being able to go backward or foreward in time is not so much built on appearing in another dimension separate from our own; they all co-exist. If, in fact, they exist at all.
Imagine a single point. From there, a near infinite path of lines extending out to a near infinite number of points. Ahead of those near infinite number of points, another set. From the first set a line goes out to near every point ahead of it. And so on. Nearly every point is connected to the near-infinite point behind and in front of it.
The very first point, the single point, would be your measure of time. The instant you came into your existence (that point is only a one of the near infinite that are on everyone else's measure of time), a near infinite number of things can happen. And for every point thereafter, another near infinite number of things can happen, be they decisions you consciously make, or something you have no control over (a meteor hitting you, being hit by a car, whatever).
I say near infinite because there are only a finite of things that can possibly happen at a given point, not infinite.
And so your measure goes on, with every point being able to connect to nearly any other point thought your history. I say nearly because, if at one point you kill your father, you cannot go on in time to have dinner with him the next day.
This model is also used when I describe free will vs. destiny. We have the free will to choose between a near infinite number of possibilities. It's sort of a both free will and destiny. Where you are now, you have a distinct path in your past that lead up to it from the decisions you made. But that was not the
only way things could have turned out, they could have turned out near infinitely different, but you chose to get to this point you are at now.
So, when you go back in time, you're theoretically just "existing" in an already designated point in history that you haven't experienced. But, since there is no single line from this instance right now to, say, ten years ago, that does not intersect other points or lines (impossible if time travel is instantaneous), we would have to introduce a third dimension to this model, a depth, to accommodate for time travel and a connection between any two points circumventing everything else in it's path; time (which, as mentioned way, way, way above, is what stops everything from happening at once).
However the model would already have to be three dimensional. Right now we are at Point A in your little history. Let's say you go back in time to Point B and kill your great grandfather. Surely there is no way that Point B can continue it's natural, linear progression through time and get to Point A. Therefore from Point B a whole other series of possibilities would spring into existence, creating a three dimensional model, where you can get to Point C, where "you" would be today if you went back and killed your great grandfather.
How's that? Wow, 1:40AM by the time I post this. :shock:
EDIT: After fixing, adding, and removing some stuff from my post...
Hoomfie said:
...Speaking of singularity, where does the matter and light that enters a black hole go to?...
It "goes" nowhere. It stays in the hole (actually a sphere). It's matter that's so dense that light cannot escape. Take our sun. If you were to take it and crush it into a ball mere miles in diameter, you'd have a black hole. It's what can happen to stars that die (deplete their energy). I'd have to find either
A Brief History Of Time or
The Universe In A Nutshell (both by Stephen Hawking, and great reads in my opinion) to explain better, but after a star depletes it's fuel it's burning, it cools and with that loss of energy it begins to collapse under it's own weight. As that happens, it can trigger new reactions from new fuel sources (all that star to supernova to red giant, blue giant, whatever) until that too is depleted, it again begins to collapse under it's weight until it becomes incredibly dense. All that matter is still there, but just incredibly dense. More matter and light fall into the black holes gravitational field and cannot escape. It has massive gravitational pull. That's about all it is.
2.02AM. Ha.