It will never be the answer to Jewish creativity. Granted, the ghetto contains several comforting elements. It is a secure place, everyone is the same. There is no fear of intermarriage, there is no one else. It creates a false sense of identity, there are no real difficult choices.
Residents have clearly defined roles, outsiders are the enemy.
Maimonides is the example par excellence. He was a philosopher, court physician for the Moslem ruler of Egypt and one of the greatest rabbis of all time. He was and still is one of Judaism's shining lights. He was not only known by his Jewish name, Moses Ben Maimon, the Rambam, but also by his Greek name, Maimondes. And his works cannot be studied without a deep knowledge of the intricacies of Greek philosophy and Islam.