I greatly enjoyed this article and, as a geologist, I enjoyed thinking about the various factors that cause lunar regolith to behave the way it does compared to earth and mars sediments. Lunar regolith is something I've read about, but never seriously studied and I hadn't thought about it this way.
I also am a big fan of this approach to science and engineering - pushing the limits just because we can, leading to all sorts of discoveries and advances nobody would have expected initially. I think it's a useful philosophy in general, applied to many different circumstances.
Also, I smiled when I saw that you're involved with Hacker Dojo, @KatyLevinson. I happened to be passing through the bay area with my dad a couple years ago right when the Maker Faire was happening, and he being an old-school machinist and toolmaker and tinkerer but not up on all the modern stuff I knew he'd like it. It also happens that our last name is actually Hacker, and my dad loves finding stuff that says Hacker on it no matter what the context. We both grabbed a Hacker Dojo sticker from your booth and he particularly enjoyed that.