Yeah, that's fair. On the history, everything I know is from this excellent article, so might as well cite it here for the curious, and just in case you haven'

Yeah, that's fair. On the history, everything I know is from this excellent article, so might as well cite it here for the curious, and just in case you haven't seen it: https://www.paci.com.au/downloads_public/knots/KnotBio_zeppelin.pdf https://www.paci.com.au/downloads_public/knots/KnotBio_zeppe... (password: copyright)