It really doesn't disprove Lessans' observations. Lightning would be seen in different frames of reference because it's not matter; it's electricity. IOW, it's not an object. Do you understand why this doesn't apply?
No, I do not understand why this does’t apply, because there is nothing to understand. It is nonsense.
Light is an electromagnetic wave. We do not see light. We see the things light illumines.
In the case of Einstein’s train gedanken, the person on the ground sees the back and front of the train illumined and the air between the train and her eyes illumined simultaneously. The person on the train sees the front of the train and the back of the train and the air between them illumined sequentially. This is proof we do not see in real time. If we did, the train observer and the ground observer would agree when the lightning struck.
That makes sense because it shows that the frame of reference between being on the ground and being on a moving train allows us to see the lightning differently at the same time. This is no surprise really. In fact, it makes sense. Whether we see lightning simultaneously or sequentially demonstrates that depending on our frame of reference where one is stationary and one is moving changes what we see. Both people are obviously seeing the lightning differently as it strikes. It still does not prove what you think it does: that matter reflects light such that it travels over hundreds of years to reach the eye.
Yes, peacegirl, it does prove it. You keep telling everyone that we see everything instantly, that if God turned on the sun at noon we would see it instantly, even though it takes the light eight minutes to reach the eye. If this were true, everyone, in every reference frame, would see everything instantly, and all agree on what they saw and what time it happened. The relativity of simultaneity proves that this is not the case. From the relativity of simultaneity we also get time dilation, which would be impossible in a world of real-time seeing. We went over this with you again and again at FF. Your cellphone has a GPS. Every time you use your phone for directions or to find the location of something, you are refuting your author’s claims.This is because the GPS in your phone must account for both gravitational and relativistic time dilation. But time dilation would not happen in a world of real-time seeing.