- A participant proposed that Google AdWords could be weaponized as a denial-of-service vector by deliberately siphoning scarce technical talent into low-value ad-clicking behavior, and argued that anyone who clicks on ads thereby signals poor judgment.  
- A 2016 Phys.org article was circulated describing a laser-switchable metamaterial: 300 nm-thick amorphous GST (germanium-antimony-tellurium) films patterned at 750–950 nm grating spacing that reversibly toggle between blocking and transmitting near-IR light (1300–1600 nm) when a green laser induces crystallization, offering a non-volatile optical modulator for photonic circuits or adaptive optics.  
- Bryan Bishop released new transcripts from the 2018 “Building on Bitcoin” conference to diyhpluswiki, covering Lightning wallet design, script development, CoinJoinXT, and the Dandelion transaction-routing privacy protocol.  
- DARPA’s EXCALIBUR program was highlighted as aiming to deliver 10× lighter and more compact optical phased-array laser systems for applications ranging from laser-pushed spacecraft and space-elevator climbers to high-precision machine tools and directed-energy weapons.  
- A Swiss Bitcoin meetup organizer publicly requested a “Zurich-based @kanzure” to provide real-time technical transcripts of their talks, reinforcing the channel’s reputation for rapid, high-quality note-taking.  
- Recent literature on ATP thermodynamic efficiency (Astumian 1997, 2015; Motlagh et al. 2014) was discussed, showing that the ~20 kBT energy packet supplied by ATP is near-optimal for switching protein states without excess waste, potentially explaining its universal adoption across prokaryotes.