If you don't believe in free will based on the principle that every event causes another event, which causes another, etc... then take a look into quantum physi

If you don't believe in free will based on the principle that every event causes another event, which causes another, etc... then take a look into quantum physics. A great intro book is Quantum Enigma. Quantum Physics is one of the few branches of science that is not always predictable. Even more, our inability to predict is not based on a lack of ability to measure precisely or lack of computing power. Quantum physics gives our world an elements of spontaneity.