I've read all of those! (I actually discovered Karl Schroeder from your blog; for which I thank you. I gather _Lockstep_ addresses the same subject, but haven't

I've read all of those! (I actually discovered Karl Schroeder from your blog; for which I thank you. I gather _Lockstep_ addresses the same subject, but haven't read it yet.) Although they're very much focused on going substellar objects, e.g. brown dwarves or dark giants, while I'm thinking of the vastly more common asteroidal bodies. It's not a subject I've seen addressed very often. Here's the paper that crystallised the idea for me: http://arxiv.org/pdf/1201.2687v1.pdf http://arxiv.org/pdf/1201.2687v1.pdf Also, yes, fiction --- I'm not enough of a scholar for non-fic.