@gregeganSF Obligatory: #PermutationCity has been one of my #top3 #books for ages now, so thanks for that! Strong world(s)building, strong ideas.

That said, one thing I'm still curious about: did you ever end up hearing or concocting a persuasive refutation of #DustTheory? I'm guessing that lime-green FAQ from aught-nine may be a touch out of date...