Thank you for your input.
I would like to point out that on the scientific side of things that I'm not asking if it's possible to know all the information about every particle in the universe, however, if we did, and we knew how they would all react to each other, could we not then, in theory, predict the future infinitely?
And in the philosophical side, I really don't see why you would separate it from the scientific, as it's the scientific side that would have an impact on the philosophical side. Because, if you knew the location, speed, etc of all the particles, then you could predict exactly what someone were to do, and does that not get you thinking that Free Will, at least how it is commonly thought of, does not truly exist?