Why are you so arrogant? Of course I understand your thought. I didnt make any comment for your lack of understanding on my thought.
So relativists believe that when Im standing still, Im actually standing still. When I run, I actually dont run. When I accelerate, I actually dont accelarate. When I decelerate, I actually dont decelerate.
They believe when Im driving a car at a constant speed of 80mph, I dont know if Im actually running at a constant speed of 80mph, I could be even standing still, and I generally need another one to define what is the truth. But the thing gets worse. The other's point of view is not again the truth, but a subjective relative view. So relativity ends in a vicious circle where nothing is true and quest of truth is vain.
True Myth; I am writing the following in good faith. As an unemployed postgrad student, my time isn't worth very much from the perspective of everyone else, but from my perspective it's very valuable (I could be spending my time watching this
" class="bbc_link" target="_blank" rel="noopener noreferrer">video of a really cute owl for example), so as I have taken the time to write this response, please be mindful of the contribution I am making and make a genuine attempt to understand what I'm trying to convey. Please make sure you understand what I am saying before attempting to find loophoes.
So relativists believe that when Im standing still, Im actually standing still. When I run, I actually dont run. When I accelerate, I actually dont accelarate. When I decelerate, I actually dont decelerate.
First of all, acceleration is not relative from an
inertial frame of reference.
Second, when you are running, rest assured, you are running. No relativist is going to approach you and claim otherwise. If he does, please be assured he is not from my round-earther illuminati club and would never even be allowed in. Furthermore, when you are standing still, provided you are not flailing your arms about or playing "silly willy", then it's perfectly within the round-earth relativist paradigm to say that you are standing still..
Relative motion refers not to the stillness or activity of a person, but to the velocity and position vectors which describe their position. I'm going to get into some maths so please pay attention:
Suppose everyone exists on a flat plane, you can imagine all of us on a flat tarpoline with soap on it, we're all sliding around on it having a jolly good time. The tarpoline and us are the only things that exist; we're just stuck on this trampoline by nothing but the adhesive force of the soap on our butts. Suppose now that each of us state that they are the absolute centre of the universe. Suppose the tarpoline is 100 metres long, and 100 metres wide. Let's say there are 3 of us on the tarpoline:
Bob
Jim
Lucy
Let's call the reference point the "origin", and use the
cartesian coordinate (0,0) to describe this position (using the unit of metres). Every person thinks they are at the origin. Now, let's invent a velocity vector, which describes the lengthwise and widthwise velocity of each member. Each member thinks they are the centre and thinks they're not actually moving, so they each state their velocity vector is (0,0), note that velocity is measures in metres/second. If you are confused about the notation, the first number represents the distance and velocity in the lengthwise direction (for the position and velocity vectors respectively) and the second number represents the distance and velocity in the widthwise direction (for the position and velocity vectors respectively).
So just to clarify, if you are moving from left to right at 2m/s your velocity vector would be (2,0), if you are 100m down and 50m to the right your position coordinate would be (50,-100). Does this make sense?
Ok, let's say that Bob is in the middle of the tarpoline, and isn't sliding on it. Jim on the other hand is having a great time, he's currently at the top-right end of the tarpoline and sliding at 1m/s on the tarpoline to the left. Lucy is on the bottom-left of the tarpoline, sliding at the same speed as Jim on the tarpoline but in the other direction.
From bob's perspective, the position of Jim is (50,50), the position of Lucy is (-50,-50), and his position is (0,0). The velocity of Jim is (-1,0) and the velocity of Lucy is (1,0), and his velocity is (0,0).
From Jim's perspective, the position of Bob is (-50,-50), the position of Lucy is (-100,-100) and his position is (0,0). The velocity of bob is (1,0), the velocity of Lucy is (2,0) and his velocity is (0,0).
From Lucy's perspective, the position of Bob is (50,50), the position of Jim is (100,100) and her position is (0,0). The velocity of bob is (-1,0), the velocity of Jim is (-2,0) and her velocity is (0,0).
From the perspective of the tarp, and taking the "origin" (that is the (0,0) point) to be the bottom-left of the tarp, the position of Bob is (50,50), the position of Jim is (100,100) and the position of Lucy is (0,0). The velocity of Bob is (0,0), the velocity of Jim is (-1,0) and the velocity of Lucy is (1,0).
Out of the 4 observers (ie. Bob, Lucy, Jim and the tarp) each one makes different observations; not a single observation is the same as the other. Which is correct? No one knows...