- Leap Motion’s Project North Star open-source AR headset received a mechanical update; the design is considered fairly mature, but only STEP files (rather than native CAD) are currently available.  
- Kelly Peng (@ziqipeng on Twitter, @kelly.recursion on Instagram) is highlighted as an optics experimenter who appears to have broad access to research labs for tours and demonstrations.  
- The term “longmind” was coined in-channel to describe the Buddhist metaphysical idea that sentient beings possess a continuous stream of past, present, and future lives that are simultaneously extant, explicitly noted as incompatible with strict materialist frameworks.