This is just a memo for everyone out there.  As you may know, my research thesis is the fine-tuning argument in light of the multiverse and my suggestion is that the multiverse exponentially strengthens the argument.  I’ve traced multiverse scenarios back to the Church Father Origen and Paley (read the second chapter of Natural Theology). It doesn’t seem to be considered as actual until Hugh Everett in the mid twentieth century.  If any of you have more information on the historical development I would greatly appreciate it.  Thanks!