Like many other world religions, one of the main issues that Judaism faces is dwindling membership. There are many reasons cited for this decline, but Jewish leaders and scholars agree that it has to do with the evolution of religious thought, a change in historical perspectives and the assimilation of small member communities into other cultures resulting from global dispersal.
Religious thought is continually evolving as a result of generational turnover coupled with the advance of science, global communication, and cultural pluralism. Today's Jewish youth, even those with strict orthodox upbringings, are presented with a much wider array of possible cultural identities than their forebears, and this can directly affect membership. The future of Judaism, like other religions, is driven by how effectively conservative factions can maintain traditional ideas and customs in the face of an increasing number of new cultural and religious ideas.