No, I don't know it. In fact, I don't think there's any kind of evidence to suggest "free choice" is even possible for any kind of definition of "free choice" that doesn't make a mockery of the idea it is "free".

I'm still waiting for a definition that could even suggest otherwise. I know I won't get one, because nobody I have this discussion with is ever capable of coming up with one.

If you can't even define the terms, why do you imagine I should "know" it to be true?