Is Parenthood Just Permissible? (update)

Mark Quinn -- http://www.marcquinn.com/
Update 9/23:  The discussion continues, with the aid of the following diagram.  See Justin's comment at the end of the comment thread. I'm mid-pondering (and busy today), so will reply tomorrow.  There are two interesting issues here: what we mean by "supererogatory" and what moral valence should be assigned to having children.


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Originally posted 9/