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Originally Posted by peacegirl
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Originally Posted by Spacemonkey
But this is exactly what I was describing as instantaneous teleportation of duplicate light before, and you denied that was what happens. (On this model, the light at the surface of the object is constantly creating and updating duplicate copies of itself at the film or retina.)
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Duplicate copies? Would you call a mirror image a duplicate copy? |
Yes.
Quote:
Originally Posted by peacegirl
Quote:
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Originally Posted by Spacemonkey
Imagine the Sun is ignited, but comes into existence alternating between yellow and green every second. When it first ignites, it is yellow, and yellow light comes into existence at the observer's eyes. So there is yellow light at the observer's eyes and at the Sun. One second later, what color is the light in the observer's eyes?
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One second later the observer would see green. |
Good. So there is then green light coming into existence at the observer's eyes.
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Originally Posted by peacegirl
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Originally Posted by Spacemonkey
Is this light the same light that was there just before, but with a new color (frequency)?
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How could it be the same light that was there before when light is constantly moving?
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Originally Posted by Spacemonkey
Or is there new light constantly coming into existence in the observer's eyes, matching the real-time color of the Sun?
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Exactly. The photons are constantly coming into existence in the observer's eyes, matching the real-time color of the Sun. |
Great.
Quote:
Originally Posted by peacegirl
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Originally Posted by Spacemonkey
And where is the yellow light which was at the Sun a second ago? Is any of it travelling towards the observer at this point?
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There is no yellow light traveling to the eye. That's what I'm trying to tell you. It's there already the instant the Sun changes color.  |
Wait,
what? When I say that the Sun is ignited, I mean that a great ball of
photon-emitting fusing hydrogen and helium comes to exist. What do
you mean?
Does light never exist at the Sun? Is the newly existing Sun
not emitting any light? When first ignited, is the yellow light
only in the observer's eyes and
not at the Sun? Or does the yellow light at the Sun cease to exist as it leaves the Sun's surface, such that it never travels anywhere?