- Caltech researchers have demonstrated an 8×8 optical phased-array (OPA) camera that captures images without any lenses, using heterodyne detection on a silicon chip—pointing toward ultra-thin, flat imaging systems.  
- A brief discussion of dimensional fine-tuning noted that a quantum-chemistry professor almost asked why spacetime is four-dimensional, prompting a participant to muse about invoking the anthropic principle and “minimization of expense” as possible explanations.  
- Google Takeout (https://takeout.google.com/settings/takeout) was highlighted as the official route for users to export their own data from Google services.  
- Participants joked about the “<3” emoticon being a “heavily-collided register” that conflates multiple human emotions rather than a single feeling, illustrating informal channel banter about affect and semantics.