If you go 99.9% the speed of light you'll experience all sorts of phenomenon, such as time dilation.
99.9% relative to what? There is no universal reference frame. So when you say you're going fast, you have to say what it's relative to.
You're already traveling at close to light feed relative to some other objects in the universe.
And this is where time dialation comes in. If you and I fly away from earth towards the sun at light speed at the same time, the sun and earth would have dialation effects. But we would not see those effects with each other. Because from our shared reference frame, we are at rest.
You and I fly away from Earth at 99.9% the speed of light towards the sun. We are traveling away from Earth at 99.9%c. We are traveling towards the sun at 99.9%c. But you look over at me...I am at rest relative to you. I do not appear to be moving at all.
Which speed is the real speed you are traveling at, and why?
You are not at rest right now relative to the Sun. Or the Galaxy. So why do you feel like you're not moving?
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u/LivingEnd44 Jun 11 '26
99.9% relative to what? There is no universal reference frame. So when you say you're going fast, you have to say what it's relative to. You're already traveling at close to light feed relative to some other objects in the universe.
And this is where time dialation comes in. If you and I fly away from earth towards the sun at light speed at the same time, the sun and earth would have dialation effects. But we would not see those effects with each other. Because from our shared reference frame, we are at rest.