6.7 Relativity of Simultaneity

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Is all this just a fancy way of saying that the farther away an object is, the longer it takes the light from the object to reach us?

Do you really believe in the 'relativity of simultaneity'?

Aren’t the effects too small to care about?

Isn’t all this just an optical illusion to do with light?

With different observers not agreeing on what happens at the same time, how can there be any results that are objectively true? How can there be science?