>Exactly my point, you must borrow from MY worldview in order to maintain the law of non-contradiction. Thank you.

So, let me get this straight: If I borrow from your worldview, then it can be proven that your worldview cannot be proven. If I don't, then your worldview can not be proven. Sound like a big fat "Invalid" to me.

>All worldviews are necessarily circular, but not all are (read only one is) valid.

You are denying the validity of ALL arguments, including your own? Which would mean that, you know, you cannot proove that you are right?