quantumdude
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brodix said:Any point of view is subjective. In fact the very act of defining any kind of order requires a point of view. That doesn't mean that nature requires a point of view. My reference here is that a point of view is just that, a point and from that point of view, space and time are fundamentally connected, as it takes time for the point to move in space.
Of course any pont of view is subjective. But it is not from any single subjective frame of reference that we say that space and time are coupled. It is because of the objective relationship that connects all frames of reference that we say that space and time are fundamentally connected.
The measure of time, in fact is specifically subjective, in that it measures a particular action against its context.
What?
Temperature is a more objective measure of motion, as it is a general level of activity against a predetermined scale.
Temperature is no more objective that time. It is not Lorentz invariant.
Tom: Neither space nor spacetime is considered a reference frame by anyone. A reference frame is nothing other than a state of motion from which one can assign spacetime coordinates.
brodix: I'm afraid you've lost me on that.
Then study relativity, and stop making up terms.
If a reference frame is a state of motion, isn't that in space and in time?
Yes. That doesn't mean that spacetime is a frame of reference.
My point is that there are various scientific concepts, specifically matter/anti-matter and absolute zero which assume a neutral vacuum as an equilibrium.
Then why do you say that the point of view taken by physics on spacetime is "taken for granted"?
Not all science is unconsciously reductionistic, in fact much of scientific inquiry is that attempt to see beyond the subjective. That being said, I refer first to my first point, in that simply determining principles that apply to any subjective perspective doesn't make an observation objective, it just makes it subjectively general.
How does "subjectively general" differ from "objective"?
Second, I will refer to the primary point I keep making in these discussions; That if you are measuring motion, then the frame of reference is in motion as well
Why say that? If it is approximately inertial, then the frame can be regarded as at rest.
and is a counter to the point of reference,
What do you mean by "counter to the point of reference"?
otherwise you end up with this static fourth dimension of space that the point of reference is presumably moving through.
Who presumes what now?
Remember, the frame of reference isn't some Newtonian universal field.
What frame of refernce?
It is all other bodies, which are in motion and as I've pointed out, there is a general scientific agreement that they do exist in a larger equilibrium, so if you have isolated out a particular motion as a reference, then this leaves a void in that larger equilibrium.
What?
When one isolates a particular motion as a reference, one does so as a mental exercise. It cannot possibly leave a "void in that larger equilibrium", because it has no efficacy in the real world. What you say here makes no sense.
As QM points out, measuring something affects it, so measuring the rate of motion of the universe affects it equal to your measure.
We were talking about spacetime in relativity, remember? What does this have to do with anything?
You are simply seeing the abstract units, not the process that measures them.
No, I'm not. But you are putting undue emphasis on a process that may be used to measure time. Rotating clock hands are not necessary.
As I've pointed out, units of time go from beginning to end, while the process goes on to the next, leaving the old. This is a good example of the subjective nature of time, as we tend to view units of time as sequential, because we only view them from one point. The reality is that there are people all around the Earth and they all have overlapping units of time, so that as a day is dawning in one part of the world, it is fading in another part and the process of time is going on to new units as it leaves the old.
This is completely irrelevant to Relativity. It doesn't matter that it is pitch black in one part of the world, when at the same time day is breaking in another part. What matters is that clocks tick at the same rate in different frames.
Regular processes that we can effectively use to measure standard units. Notice how we associate the marking of the unit with decay. Meanwhile the process goes on to the next measure...
We don't just associate the marking with decay. We associate the unit with any rate that is known.
As in?
As in any time-dependent process with a known period or rate.
What is our frame of reference? The Earth rotating relative to the sun? From our perspective, it is the sun that is moving from east to west, but from a more objective perspective, it is the Earth that is moving, as it rotates west to east.
Let me help: It is the Earth that is rotating.
The acceleration can be measured.
I feel I have been, but that is only my frame of reference, so my question is to you;
You feel wrong. You have not presented any evidence as to why you think science overlooks any "equilibrium". Nor have you presented any specific cases in which this oversight has been been exhibited, nor have you even explained what the problem is, in your opinion. All you have done is assert that science is overlooking something.
Well, that's not very helpful!
Care to listen with as much willingness to agree as to disagree?
Always. Do you care to do the same? And do you care to present actual evidence to back up your claims?
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