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Caporegime
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SHOULD I PEE ON MY LAWN? THIS IS IMPORTANT
Thought about Space
- Thread starter kwerk
- Start date
Conceptually stupid even on a basic level.
Point A (earth, for example) is limited by a cosmological horizon so that it is just out of range of point B. However, point C is in the middle of those two points, and so can receive information from both points A and B.
The cosmological horizon as we are aware of it only exists for our point in space, and has nothing to do with separate universes.
Duh doy.
except point A is separating from point B at exponentially increasing speed because of the time differentials. The further away it gets the faster it is moving away. Eventually point C will be separated from both points too. Once the inflation speed starts going straight up on the exponential curve (i.e. the distance to the horizon has been reach) it is basically infinity distance away. It's gone forever, even if you tried to relay through a half-way point C. There can be no information exchanged either way ever again even if you move towards it at light speed. It has basically forked off as an independent sub-universe.
I lol'd at the troll.
People don't believe this?
Soldato
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- 7 Aug 2004
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Kwerk,
You have such a misunderstanding of physics words fail me, you have totally got the wrong end of the stick.
You have such a misunderstanding of physics words fail me, you have totally got the wrong end of the stick.
He is a troll. The entire forum knows this. Each and every one of his threads is designed to wind people up, and they do so with varying degrees of success. In this case, you're all biting at his bait and giving him exactly what he wants (as am I with this post I suppose).
Don't take him seriously - your irritation is his only goal.
These are all pretty well accepted in physics:
The universe is expanding.
The further apart things get, the faster they inflate away.
There is temporal curvature/stretching going on in between the things.
Information "travels" at the speed of light.
There is a cosmic horizon where the rate of inflation exceeds the speed of light 9and information).
Information can not pass that horizon (sort of like a black hole).
All I'm saying is once information has crossed the horizon it is basically catapulted an infinite distance away and might as well not exist anymore. It's essentially broke off in to a different universe.
What people seem to be tripping up on is the fact the horizon is relative to your current position, but that doesn't mean you can ever retrieve information that has passed the horizon.
Soldato
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Cant be bothered go into it as im off out now, but your comment I skim read about 'jumping out of an air craft and the ground speeds away' in an attempt I assume to explain expansion is incorrect.
You fail to consider the plane, the space between the plane and the person jumping out are expanding as well, hell us sitting at the computer now are expanding right now, its not perceptible but its happening.
So the galaxies are drifting further apart sure, but its not as simple as that.
What will really bake your noodle is, if everything is expanding 'equally', thus the relative distance shouldn't change, because it you and the object are expanding, yet the galaxies are measurably getting more distant, may blue screen your mind,lol.
You fail to consider the plane, the space between the plane and the person jumping out are expanding as well, hell us sitting at the computer now are expanding right now, its not perceptible but its happening.
So the galaxies are drifting further apart sure, but its not as simple as that.
What will really bake your noodle is, if everything is expanding 'equally', thus the relative distance shouldn't change, because it you and the object are expanding, yet the galaxies are measurably getting more distant, may blue screen your mind,lol.
This might explain it better than falling out of a plane.
http://math.ucr.edu/home/baez/physics/Relativity/GR/hubble.html
I already went over this earlier. Objects are not expanding, they are contracting if anything. Empty space is expanding. More precisely the time within it is dilating. It's a fundamental principle that mavity bends space-time. When you get in to entropic mavity, it's not even mavity it's entropy condensing these quantum level degrees of freedom to exploit maximum microstate probabilities.
Where there is matter/mavity space condenses, where there is no mavity it stretches (to correspond to where it condenses). The cosmic horizon is where there is pretty much no mavity (or entropy (or time)). An entropic dead-zone.
But what is this distance to the horizon once it has been reach??!?!
Now what if we consider the entire argument with entropy reversed and effect preceding cause. Here, we have a universe not expanding from the centre - no, it is retreating from a possibility space.
Only the separate galaxies appear to be expanding apart so I think the object with the most gravitational influence over you would be the centre of your universe. Like the super-massive black hole at the centre of our galaxy. Everything else (other galaxies you can still see) have a diminishing rate of influence as the gravitational influence weakens and they drift apart. Once there they hit the boundary and there is no influence, they are essentially a separate universe.
If you were at the edge of your galaxy you would technically be closer to the your universe's cosmic horizon, but due to the exponential nature of the inflation it wouldn't make much of a difference because the nearest information beyond the horizon is infinity away and YOU don't have any gravitational influence over it, your galaxy does.
Infinity - distance from you to center of your galaxy = infinity.
"Galaxy" is a loose term though, because some galaxies are close enough to actually be increasing in gravitational/entropic influence in relation to us. In fact some of them are supposed to collide with us one day.
So "our" universe is actually contracting, the cosmic horizon will eventually be closer and closer which is totally counter-intuitive really.
"Other" universes are expanding away until the entropic chain snaps and they become irrelevant to us.
There isn't one...everything is expanding away from everything else....including the atoms in your body.
There isn't one...everything is expanding away from everything else....including the atoms in your body.
Atoms are not expanding, the only thing expanding is empty space between huge masses. There is only evidence of redshift from other galaxies which means they are "moving away" or time is dilating between us as it gets sucked in to the respective galaxy's mavity wells. Other stuff in the milky way is not red-shifted in a way that suggests it's expanding from us.
