An excerpt from an interview by Douglas Wolk for the io9 website on May 30, 2012:

I ask Stephenson about the cane-fighting subgroup that drew Greg and Erik Bear into the project, and he’s off into explanatory mode again. (I’m not complaining. I could listen to Neal Stephenson explain stuff all day.) “It’s an interesting thing,” Stephenson says, “because from a distance 19th-century martial arts looks kind of dorky — it looks like Monty Python. It ties into everything we believe about the Victorians: that they were out of touch with their bodies, that they didn’t really understand medicine very well, and that they were uncomfortable with physical activities. But once you get into it, you find that these people really knew what they were doing in terms of physical culture, in terms of self-defense. Victorians were really serious about staying fit.

Part of what makes this an interesting story is how, in the 19th century, jiujitsu was adopted by women. This guy Barton-Wright brought jiujitsu to London. He came back from Japan and created a club called the Bartitsu Club. He taught the mixed martial art of jiujitsu, bare-knuckle fighting, savate, stick fighting and a few other things. He brought in a couple of teachers from Japan, and would take them around the music halls—have them challenge huge, burly guys and throw them around. This had an unintentional side effect that suffragettes would see these performances, and decide they wanted to learn self-defense: ‘I want to defeat a man!’ Jiujitsu as a ‘husband-tamer’!

We want to do a side-story quest thing about the jiujitsu suffragettes. The image that we’re all dying to get into a full-page spread in a comic book is this lineup of Edwardian women with the flowered hats and the long skirts and the bustles, and they’re all walking eight abreast down a London street, swaggering toward the camera and approaching a bunch of bobbies… if we could get that image in some medium, that would be a good thing.”