- **High-density biological oxygen storage concept** – ButaTine reported that a proposed system for storing O₂ biologically becomes “terribly reactive” at 37 °C, prompting discussion about safer alternatives such as nitrate-based carriers.  
- **Live QA system demo** – pasky released a working prototype of an AI question-answering system at http://live.ailao.eu/ for public testing.  
- **VR motion-control critique** – archels_ shared an Imgur gallery of VR sword-play and argued that current hand-held controllers lack the momentum realism needed for immersive sword feedback.  
- **Mass-manufacturing query** – heath sought vendors able to injection-mold 5 000 plastic covers similar to the Eero router case, then decided to use his existing employer’s resources.  
- **Paperbot resurrection** – kanzure and others tried to recall how to restart the channel’s academic-paper-fetching bot (phenny/paperbot), noting the lack of written deployment instructions.