Always One Determined Future.

Even if, hypothetically, we could accurately predict that actions of humans, our ability to do so has already been determined. Additionally, the only thing that we actually have control over is ourselves. When one attempts to imagine predicting the self, it becomes clear that one cannot break the determined future. Imagine wanting to kick a ball; if you know that everything that exists has determined that you will kick the ball, you could act under the illusion of free will and choose not to kick the ball. This, however, does not demonstrate free will; it simply demonstrates that in response to knowing you would kick the ball, it was determined that you would choose not to. Essentially, what you do is already determined regardless of what you actually do; whether you choose to kick the ball or not, it was already determined that you would make that choice based off of whatever predictable thought process you had.