Consider this:
You have three boxes, in each is a tiny man, they write numbers on paper and pass said paper through a slit in the top of the box.
One is copying numbers out of a book .
The other is writing totally random numbers.
The other is choosing numbers using their own Freewill.
Now, here's the thing, not only is there absolutely no way of telling which man is inside which box by looking at the numbers they write - perhaps leading one to believe that all three things are fundamental the same, or at-least there is no meaningful difference -, there are a few interesting ideas:
-Where did the information in the book come from? Was it ultimately a product of free will or randomness? It seems logical that predetermination must be a result of one of those two.
-If the numbers writing by the man choosing them himself are of Free Will, then why is he writing them? Is that not just the predetermined product of his thought pattern, or is that not just randomness?
-What's the difference between the man writing them down randomly and the man using Free Will?
The terms 'Random' and 'Freewill' are some of the few terms that are not strictly defined. We have no idea what either of them really means.
What we can say is this: Weather Free Will does or does not exist, nothing changes.
Consider this also: I prefer tea over beer. (A lot.) So, If I am put in a room with a cup of each and told to drink one, I drink the tea, obviously.
Then do the same experiment, under the same conditions. I have no idea it has happened before, everything is EXACTLY the same. I will choose tea again.
I will never not choose tea. Is that not predetermination? I can choose which one to drink, but that's based on what I want, and I CANNOT choose what I want.
Furthermore, if Free Will is neither predetermined or random, what IS it? what causes it?