But they made the corrections.
If the corrections were unwarranted, then making those corrections would
result in an error. This error would be readily detectable: your GPS should be off by miles,
if no correction were needed. (because the correction was made)
But the GPS is not off by miles.
Another question, Pin:
A scientific theory needs to be able to make predictions successfully. If the predictions are wrong, something is wrong with the theory. Among many, many other things, Relativity predicted curvature of space due to gravity. I know, you think that's all fake, but we're focusing on Einstein's prediction. Einstein didn't just predict curvature of space, he predicted a
very specific and calculable curvature of space. One way to measure this is to measure the bending of light as it passes near massive objects like a star. You've said this is just "optics," so I guess every star must have a big glass lens near it, or something.
A little illustration at how someone would test this:
Measure the angle for a distant star at one point during the earth's orbit. (say, in June) Measure again from a different position during the earth's orbit when the distant star's light has to travel close to, or through the sun, and therefore is most strongly influenced by the sun's gravity.
Now, you vaguely say "optics" will account for this, but Einstein predicts this to happen in exactly a calculable way. This was first tested in 1919.. and the results were mathematically exactly what Einstein said they would be.
How come the light bends
exactly as calculated by Einstein? Do your "optics" coincidentally work exactly as Relativity would have predicted?
