- A 2009 H+ Summit presentation was scheduled for Saturday 5 December 2009, with a live webcast at http://www.techzulu.com/live.html and promotional slide at http://adl.serveftp.org/~bryan/screenshots/2009-12-04_hplus-summit-2009-slide1.png.  
- Robert Freitas’ 2009 paper “Meeting the Challenge of Building Diamondoid Medical Nanorobots” was shared: http://adl.serveftp.org/papers/Meeting%20the%20challenge%20of%20building%20diamondoid%20medical%20nanorobots.pdf.  
- Discussion of using CubeSats as orbital file-servers for torrenting data, including legal jurisdiction questions—spacecraft are governed by the launching country, and “unregulated” launches risk international enforcement.  
- A brief technical note that DLP chips are still manufactured with 1970s/80s-era semiconductor hardware.  
- A link to a 2004 paper on high-explosive ab-initio thermochemistry (HEAT) was posted: http://theop11.chem.elte.hu/main_index_files/2004_Tajti_HEAT_JCP_121_11599.pdf.  
- QuantumG highlighted the steep price gap between academic and commercial licenses for Gaussian 09 quantum-chemistry software, noting the absence of a non-commercial/non-academic license and suggesting BitTorrent as an alternative.  
- fenn framed transhumanism as “productive recursion” and sketched a model of civilization as a positive-feedback loop that senses, controls, and modifies reality while storing information (laws, skills, style).