- A new open-source photonics education project, “MyPhotonics,” offers build-it-yourself Lego interferometers and optical tweezers for teaching optical trapping and interferometry at low cost; English instructions are available at https://www.ufp.uni-osnabrueck.de/en/education/myphotonics_en.html.  
- Discussion of dietary methyl-donor compounds: eggs are highlighted as a rich source of choline, while spinach, beets, and lamb’s-quarters are noted for high betaine (trimethylglycine) content; both nutrients feed the methylation cycle and are being studied for treating non-alcoholic steatohepatitis.  
- A participant reported intense lettuce cravings during post-EBV mononucleosis steatohepatitis, prompting speculation that leafy greens may contain betaine-like compounds that support liver recovery.  
- A Science Advances paper (http://advances.sciencemag.org/content/5/1/eaau3333) was shared, presenting evidence that the oral bacterium Porphyromonas gingivalis infects Alzheimer’s disease brains and proposing small-molecule gingipain inhibitors as a potential therapeutic strategy.  
- Fraser Cain’s “Open Space 29” interview with Phil Torres on existential risks was recommended as an accessible introduction to x-risk concepts for newcomers (YouTube link: https://www.youtube.com/watch?v=XKYTrKapyrs).  
- Neuroscientist Kenneth Hayworth, known for brain preservation and connectomics advocacy, announced his new Twitter presence at @KennethHayworth.