Eve Harow has a lively conversation with Gol Kalev on the results of his research on modern Jewish identity that led to his newly launched book, Judaism 3.0. He contends that Temple centered monotheism was the first version of the people’s distinctiveness; Rabbinic Judaism the 2.0, and now the next stage is in the form of Zionism as the main aspect that will define the Jewish nation. Agree or not- and the huge question of ‘who is a Jew’ still looms large- this is a thought provoking discussion and a well written book on a fascinating topic to many.