Wiploc
Veteran Member
fast said:Let's say all objects in motion ceased.
Wiploc said:To make sense of that, I'm going to imagine that everything goes the same speed. Everything matches speed with, say, Pee Wee Herman. So every tardyon is stopped, relative to every other tardyon.
Seriously? The same speed, yeah--exactly zero miles per hour;
Relative to what?
hence, not moving at any speed at all.
Relative to what?
Nothing is moving!
Relative to what? Except for Pee Wee, everything is moving relative to how it used to be moving.
What's the relevance of the fact that it can be put in terms of being relative?
That's the only coherent way to put it. There is no magic speedometer that can tell you you are stopped without being stopped relative to something.
That's not a necessary quality to bring up.
Unless you want to make sense according to modern science.
You make it sound like a universe with only a single object can't be moving
A universe moving? How would that work? What would it be moving relative to?
unless there's another object to compare it to or for it to be relative with.
Bingo! Exactly! You get it!
Sure, it may appear to not move,
Relative to what?
but if it's getting closer to the outer reaches of the galaxy, it's moving.
A universe moving relative to the outer reaches of the galaxy? Fine. You've got two things, and one is moving relative to the other. I'm with you.
We talk in terms of objects in motion being in motion relative to other objects, yes, but motion, movement, and velocity doesn't require that fact.
Unless Einstein and all them brainy guys are right.
It may be a fact, but it's not necessary.
It seems to be necessary. All motion is relative. If you aren't moving relative to something else, then you aren't moving.
What I'm saying isn't contradicting relativity.
I'm contradicting you. I'm saying that you're contradicting relativity. You're saying that there is some secret absolute objective object (Jehovah, the center of the universe, or whatever) that is "really" stopped. You think that all other speeds are relative to it's speed, but it's speed isn't relative to them.
I'm telling you that this is pre-Einstein thinking. If relativity is true, you are wrong.
Objects do move in speeds relative to other moving objects. So what?
So that's what speed means.
If the only single object in a one-object universe is moving,
Relative to what? What can you mean if you say it is moving?
then that is so whether we can tell it's moving or not, and if the only single object in a one-object universe is not moving, then that is so whether we can tell it's stopped or not.
Those are viewpoint claims, not truth claims. We can say that the real object is moving ten miles an hour relative to an imaginary object that is moving ten miles an hour relative to it. One viewpoint is as good as another. Neither one (the real object's viewpoint or the imaginary object's viewpoint) is true, or right, or better than the other. There is no ultimate arbiter of the one object's speed.
Truth, as philosophy has taught us is independent of our knowledge of the truth.
Yes, agreed.
If the cat is in the other room, then that is so whether we know the cat is in the room or not.
Agreed.
But it is not truth-apt to say that the only object in the universe is moving. That's a viewpoint thing (like "Coffee tastes good") rather than a true-or-false thing. The only sense in which anything can move is relative to something else.
 
	 
 
		 
 
		