I cannot recommend the writings of Max Tegmark on the multiverse enough. Among people doing science at the heights of their fields, he is perhaps a uniquely tal

I cannot recommend the writings of Max Tegmark on the multiverse enough. Among people doing science at the heights of their fields, he is perhaps a uniquely talented popular writer. He even keeps it readable on his scientific papers, which read mostly just like his popular papers except shorter and with more math. http://arxiv.org/PS_cache/arxiv/pdf/0905/0905.1283v1.pdf http://arxiv.org/PS_cache/arxiv/pdf/0905/0905.1283v1.pdf is his overview of the levels of multiverses. If that properly blows your mind, see Bostrom's Infinite Ethics. http://www.nickbostrom.com/ethics/infinite.pdf http://www.nickbostrom.com/ethics/infinite.pdf