- Weighted blankets (7–12 kg) were reported to dramatically improve sleep quality and daytime energy, especially for users with low dopamine levels; typical commercial fillers are glass or steel beads, while DIY options discussed include pea gravel, dried beans, and zinc-plated steel washers.  
- A cost-density analysis of heavy fillers was shared: water (0.06 ¢/kg, 1 g/cc), quartz (3 ¢/kg, 2.6 g/cc), magnetite (10 ¢/kg, 5.17 g/cc), steel scrap (21 ¢/kg, 7.9 g/cc), lead scrap (95 ¢/kg, 11.3 g/cc), tungsten ($30/kg, 19.3 g/cc), and osmium ($13 000/kg, 22.65 g/cc).  
- Xenobots—non-self-replicating “computer-designed organisms” built from dissociated Xenopus laevis stem cells—were highlighted; the PNAS paper “A scalable pipeline for designing reconfigurable organisms” (PNAS 117:4, 1853) details manual microsurgical shaping with cautery electrodes.  
- Orbital rings for ultra-fast global transit and space launch were debated: at a projected Starship cost of $35/kg to LEO, 180 000 t of material could be orbited for ~$6.3 B, but geopolitical objections to overflight were noted.  
- Charles Stross’s short story “Antibodies” was recommended as relevant reading for the channel’s interests in AI and transhumanist scenarios.