I guess free will just means that making a decision is a chaotic process that can broadly be influenced from the outside but in the end can not be preditected u

I guess free will just means that making a decision is a chaotic process that can broadly be influenced from the outside but in the end can not be preditected up to the moment the result is observed. This then in turn is observed as in that the decision was not completely determined by an outside signal so it is concluded that it must have been free.