• Bryan Bishop released comprehensive notes and transcripts from Scaling Bitcoin Hong Kong 2015 covering validation-cost metrics, segregated witness, zero-knowledge proofs, Lightning Network bootstrapping, and BIP proposals (diyhpl.us/diyhpluswiki).  
• The channel debated whether posthuman civilizations avoid interstellar expansion by favoring VR, experiencing deflationary propulsion improvements, or remaining as relativistic “forever voyagers” who never decelerate.  
• Server-Sky concept slides were presented proposing a 50-AU Stapledon Dyson shell built from Kuiper-belt ice; the absence of observed Dyson spheres was taken as evidence that no Kardashev-II civilizations exist within our past light cone.  
• Participants examined the paper “Starivore Extraterrestrials” (Clement Vidal), which treats interacting binary stars as macroscopic metabolic systems, and questioned whether proteins could bridge biology to machine-phase nanotechnology, concluding that artificial ribosomes producing diamondoid or fullerene structures would be required for true molecular nanotechnology.  
• A technical debate concluded that no definitive mechanosynthesis (deterministic, mechanical placement of individual atoms) has yet been demonstrated; Oyabu et al.’s 2003 PRL AFM manipulation on silicon remains the closest lab evidence, while CVD graphene and Zyvex patterned epitaxy rely on probabilistic chemistry.  
• A new room-temperature diamond-synthesis route using only a pulsed laser was highlighted as a low-barrier experiment for channel members to attempt.  
• nmz787_i selected BRL-CAD over FreeCAD for MEMS design, citing its decades-long production use and superior numerical precision for high-dynamic-range geometries, while Bishop documented Open CASCADE Community Edition’s difficulties with CAD operations like tangent pipe tees (diyhpl.us/wiki/cad/opencascade).  
• Containerization of the legacy NanoEngineer CAD codebase was discussed: replacing the old chroot build with a Dockerfile was proposed, with an alternative of nesting the chroot inside a container.  
• Bitcoin scalability analysis emphasized that every full node must validate all transactions, creating a hard bandwidth ceiling; gmaxwell’s critique of miners voluntarily limiting block size and kanzure’s mailing-list reply were shared.  
• Incremental progress in 3-D printing fiber-optic preforms (University of Sydney) was reviewed; the group noted it still requires traditional drawing but speculated on future direct printing of doped glass layers with ion implantation for refractive-index control.