| Summary: | The author defines a posthuman as a human being that has at least one posthuman capacity. He uses three general central capacities - healthspan, cognition, and emotion -separately for most of this essay. In this essay, he advances two main theses. The first is that some possible posthuman modes of being would be very good. The second thesis is that it could be very good for us to become posthuman. Then, this essay concerns three reasons one might have for doubting that it could be good for us to become posthuman: personal identity, specific commitments to people or projects, and ways of life. Finally, this essay considers two different candidate ideas of what a human "telos" might be. © 2013 John Wiley and Sons, Inc.
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