- **Titan vs Mars colonization debate**: A Hacker News thread arguing that Titan’s thick atmosphere shields settlers from cosmic rays is countered with the practical objections that Titan is ~30× farther away, cryogenic (−179 °C), and the journey itself still exposes crews to deep-space radiation.  
- **Space settlement literature**: Jeff Foust’s review of “Beyond Earth” (The Space Review, article 3106) is circulated as a critical look at off-world colonization proposals.  
- **Linux desktop 0-day exploit**: A scriptless attack against Linux desktops is highlighted via a detailed technical blog post (scarybeastsecurity.blogspot.co.uk, Nov 2016).  
- **LessWrong meta-critique**: A LessWrong post is shared that claims Eliezer Yudkowsky’s “well-kept garden” moderation experiment failed, noting his departure without acknowledging the breakdown.  
- **Curated machine-design media**: The Twitter account @MachinePix is recommended as a stream of “popsci machine porn” showcasing novel mechanical devices and fabrication techniques.