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AngleWyrm_2 said:
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Spoo said:
You CANNOT observe an effect before the cause, regardless of reference frame. You can be struck by a bullet before hearing it because the sound doesn't make the bullet hit you.
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Seeing the bullet exploding from the gun does not make the bullet hit you. Nor does observing the gunner shout "I will kill you now" and hearing the explosion that propelled the bullet. Observation of an event by an observer is something separate from the event itself.
I have clearly demonstrated a real and recordable instance of observing an effect before observing a 'cause'.
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Seeing the bullet leave the gun must happen first from anybody's point of veiw. Note that in this case there is a profound difference in using sound and using light to tell when the gun was fired. The speed of sound changes relative to the observer's motion. The speed of light, however, is always the same (by "speed of light" I mean the speed that photons travel at). This is why it's possible to hear the gun being fired after it hits you.
Let's say that the event of the bullet leaving the gun is the cause, and the bullet striking you is the effect. Suppose that I'm standing next to the gun. Clearly, I see and hear the gun go off before the bullet hits you.
Now let's say that I start running towards you at the speed of sound just before the gun is fired. I still see the gun go off before the bullet hits you, although I never hear the gun fire.
Finally, let's say I run towards you arbitrarily close to the speed of light. I still see the gun go off first. There is nothing that I can do, as an observer, to witness you being hit by the bullet before the gun goes off.
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Observation of an event by an observer is something separate from the event itself.
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Yes they are seperate. The actual event and it's observation are another example of cause and effect. You can't observe an event before it happens!