- Kragen uploaded a “complete” version of his personal knowledge base, Dernocua, to http://canonical.org/~kragen/dernocua/ and pushed copies to multiple archives, describing the last-minute effort as “like the lost catacombs of Egypt.”  
- Discussion of the Shockley–Queisser limit explored whether its 33 % theoretical maximum for single-junction solar cells also constrains photoemissive power converters; the consensus was that the limit still applies and is even stricter because the work-function loss adds to the band-gap penalty.  
- Participants noted that practical photoemissive devices are limited to caesium (work function ≈ 2.1 eV) because few other materials have sufficiently low work functions, and higher-work-function metals such as lithium cannot simply be rescued by higher bias voltage.  
- A brief exchange on invasive blackberry thickets highlighted their aggressive growth and thorn hazards, with one participant recounting harvesting enough fruit to make hundreds of jars of jam for wedding favors.  
- Heat-stroke mitigation tactics were shared when an air-conditioner failed during brownouts: lying on kilograms of ice, cold showers, and using the unit’s still-functioning fan to eke out minimal cooling.