@MattDavis,
Matt,
This is really simple. Somethings I think the goal of philosophy is to make the logical illogical and the simple complicated.
If I drop a ball, it falls. Human beings all around the world in every culture have dropped objects and seen them fall. We all see the same thing, we all understand it the same way. This is what I call objectively testable.
When Galileo claimed that a heavier object and a lighter object dropped from a tall height some people didn't believe him. So he did it. Anyone who has tried it has seen the same thing and reached the same conclusion. This is objectively testable.
When Galileo put two lenses in a tube and observed the moons of Jupiter, he caused a stir (actually it was the philosophers who squawked and refused to accept what could be objectively seen). But anyone who did the same thing observed the same thing. Once they looked culture didn't matter.
And again science has had success in actually doing things. Philosophy didn't take us to the moon.
I am an American. When I am in a relationship I view my partner as my equal. I never force her to have sex with me. I never beat her.
This is my moral value, but it isn't objectively testable. There is no experiment I can do to tell me that I should respect the women I am with. This is a subjective belief. Unlike an objective science observation, other people have different views. There is no experiment you can do to judge between them.
The difference is clear. In science you can do an experiment and you can observe. Anyone who does the same experiment or makes the same observation will see the same thing. That is what objective means.
You keep on rather mocking saying that there is "moral telescope" that I could look through if I wasn't so dense.
Galileo described in detail how to make his real telescope. Anybody could follow his instructions and anyone who did would get the same results.
So please, if your telescope isn't imaginary, tell me how it is constructed and what results I should expect? That's what Galileo did and that's what any scientist does.