- A commercial source for small quantities of moderately rare elements was shared (rwmmint.com), framed as a convenient, uniform catalog rather than the cheapest option.  
- Bismuth was highlighted for both aesthetic appeal (colorful oxide crystals) and cosmological origin—≈99.5 % of its atoms formed during neutron-star mergers via rapid neutron-capture (r-process) nucleosynthesis, not ordinary supernovae.  
- Participants contrasted r-process, s-process, and cosmic-ray spallation as distinct nucleosynthesis pathways; a Wikipedia article on nucleosynthesis was cited as a reference table for elemental “origin stories.”  
- Practical neutron sources were discussed: alpha-emitters (Ra, Po, Am) mixed with low-Z targets (Be, C, O) yield ~10⁶–10⁸ n/s; Farnsworth fusors were noted as an accessible DIY alternative capable of “noticeable” neutron output.  
- A Nature news article was circulated confirming that the claimed room-temperature superconductor LK-99 is instead a copper-sulfide (Cu₂S) phase-transition artifact whose resistivity drops sharply below 104 °C.